update: show the commit to which we updated in case of multiple heads (BC)

Currently when we have multiple heads on the same branch, update tells us that
there some more heads for the current branch but does not tells us the head to
which the repository has been updated to. It makes more sense showing the
head we updated to and then telling there are some more heads.

mercurial/destutil.py

@@ -391,6 +391,9 b' def _statusotherbranchheads(ui, repo):'
                 ui.warn(_('(committing will reopen branch "%s")\n') %
                           (currentbranch))
         elif otherheads:
+            curhead = repo['.']
+            ui.status(_('updated to "%s: %s"\n') % (curhead,
+                                    curhead.description().split('\n')[0]))
             ui.status(_('%i other heads for branch "%s"\n') %
                       (len(otherheads), currentbranch))
 

tests/test-bisect2.t

@@ -244,6 +244,7 b' hg up -C'
 
   $ hg up -C
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "d42e18c7bc9b: 18"
   3 other heads for branch "default"
 
 complex bisect test 1  # first bad rev is 9

tests/test-blackbox.t

@@ -137,6 +137,7 b' extension and python hooks - use the eol'
   $ hg update
   hooked
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "d02f48003e62: c"
   1 other heads for branch "default"
   $ hg blackbox -l 6
   1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> update

tests/test-conflict.t

@@ -220,6 +220,7 b' are merging, unlike :local and :other'
 
   $ hg up -C
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "e0693e20f496: 123456789012345678901234567890123456789012345678901234567890????"
   1 other heads for branch "default"
   $ printf "\n\nEnd of file\n" >> a
   $ hg ci -m "Add some stuff at the end"
@@ -258,6 +259,7 b' Now test :merge-other and :merge-local'
 
   $ hg up -C
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  updated to "18b51d585961: Add some stuff at the beginning"
   1 other heads for branch "default"
   $ hg merge --tool :merge-local
   merging a

tests/test-largefiles-cache.t

@@ -206,6 +206,7 b' Inject corruption into the largefiles st'
   large: data corruption in $TESTTMP/src/.hg/largefiles/e2fb5f2139d086ded2cb600d5a91a196e76bf020 with hash 6a7bb2556144babe3899b25e5428123735bb1e27 (glob)
   0 largefiles updated, 0 removed
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "cd24c147f45c: modified"
   [12] other heads for branch "default" (re)
   $ hg st
   ! large

tests/test-largefiles-update.t

@@ -71,6 +71,7 b" we don't have to hash them again next ti"
 
   $ hg up
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "f74e50bd9e55: #2"
   1 other heads for branch "default"
   $ hg debugdirstate --large --nodate
   n 644          7 set                 large1
@@ -86,6 +87,7 b' prevents unnecessary hashing of content '
   n 644         13 set                 large2
   $ hg up
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "f74e50bd9e55: #2"
   1 other heads for branch "default"
   $ hg debugdirstate --large --nodate
   n 644          7 set                 large1
@@ -471,6 +473,7 b' Test that the internal linear merging wo'
   keep (l)ocal ba94c2efe5b7c5e0af8d189295ce00553b0612b7 or
   take (o)ther e5bb990443d6a92aaf7223813720f7566c9dd05b? l
   2 files updated, 1 files merged, 0 files removed, 0 files unresolved
+  updated to "d65e59e952a9: #5"
   1 other heads for branch "default"
 
   $ hg status -A large1
@@ -505,6 +508,7 b' Test that the internal linear merging wo'
   keep (l)ocal ba94c2efe5b7c5e0af8d189295ce00553b0612b7 or
   take (o)ther e5bb990443d6a92aaf7223813720f7566c9dd05b? l
   2 files updated, 1 files merged, 0 files removed, 0 files unresolved
+  updated to "d65e59e952a9: #5"
   1 other heads for branch "default"
 
   $ hg status -A large1

tests/test-merge-changedelete.t

@@ -114,6 +114,7 b' Interactive merge:'
 
   $ hg co -C
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --config ui.interactive=true <<EOF
@@ -178,6 +179,7 b' Interactive merge with bad input:'
 
   $ hg co -C
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --config ui.interactive=true <<EOF
@@ -254,6 +256,7 b' Interactive merge with not enough input:'
 
   $ hg co -C
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --config ui.interactive=true <<EOF
@@ -316,6 +319,7 b' Choose local versions of files'
 
   $ hg co -C
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --tool :local
@@ -364,6 +368,7 b' Choose other versions of files'
 
   $ hg co -C
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --tool :other
@@ -412,6 +417,7 b' Fail'
 
   $ hg co -C
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --tool :fail
@@ -463,6 +469,7 b' Force prompts with no input (should be s'
 
   $ hg co -C
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --config ui.interactive=True --tool :prompt
@@ -521,6 +528,7 b' Force prompts'
 
   $ hg co -C
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --tool :prompt
@@ -577,6 +585,7 b' Choose to merge all files'
 
   $ hg co -C
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --tool :merge3

tests/test-merge-default.t

@@ -33,6 +33,7 b' Should fail because not at a head:'
 
   $ hg up
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "f25cbe84d8b3: e"
   2 other heads for branch "default"
 
 Should fail because > 2 heads:

tests/test-merge-types.t

@@ -155,6 +155,7 b' Update to link without local change shou'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg up
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "521a1e40188f: symlink"
   1 other heads for branch "default"
   $ hg st
   ? a.orig
@@ -176,6 +177,7 b' Update to link with local change should '
   keep (l)ocal [working copy], take (o)ther [destination], or leave (u)nresolved for a? u
   0 files updated, 0 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges
+  updated to "521a1e40188f: symlink"
   1 other heads for branch "default"
   [1]
   $ hg diff --git

tests/test-pull-branch.t

@@ -133,6 +133,7 b' Should succeed because there is only one'
   adding file changes
   added 4 changesets with 4 changes to 1 files (+1 heads)
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "d740e1a584e7: a5.2"
   1 other heads for branch "branchA"
 
 Make changes on new branch on tt

tests/test-pull-update.t

@@ -41,6 +41,7 b' Should not update to the other topologic'
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "800c91d5bfc1: m"
   1 other heads for branch "default"
 
   $ cd ../tt
@@ -55,6 +56,7 b' Should not update to the other branch:'
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "107cefe13e42: m"
   1 other heads for branch "default"
 
   $ HGMERGE=true hg merge

tests/test-rebase-pull.t

@@ -347,6 +347,7 b' pull --rebase update (no rebase) use pro'
   added 1 changesets with 1 changes to 1 files (+1 heads)
   nothing to rebase - updating instead
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "65bc164c1d9b: R6"
   1 other heads for branch "default"
   $ hg tglog
   @  9: 'R6'

tests/test-strip.t

@@ -287,6 +287,7 b' after strip of merge parent'
 
   $ hg up
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "264128213d29: c"
   1 other heads for branch "default"
   $ hg log -G
   @  changeset:   4:264128213d29

tests/test-subrepo.t

@@ -680,6 +680,7 b' update'
   $ cd ../t
   $ hg up -C # discard our earlier merge
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "c373c8102e68: 12"
   2 other heads for branch "default"
   $ echo blah > t/t
   $ hg ci -m13
@@ -694,6 +695,7 b' KeyError'
 
   $ hg up -C # discard changes
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "925c17564ef8: 13"
   2 other heads for branch "default"
 
 pull
@@ -736,6 +738,7 b' should pull t'
   adding file changes
   added 1 changesets with 1 changes to 1 files
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "925c17564ef8: 13"
   2 other heads for branch "default"
   $ cat t/t
   blah
@@ -1212,6 +1215,7 b' Check hg update --clean'
   ? s/c
   $ hg update -C
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "925c17564ef8: 13"
   2 other heads for branch "default"
   $ hg status -S
   ? s/b

tests/test-transplant.t

@@ -419,6 +419,7 b" transplant -c shouldn't use an old chang"
 
   $ hg up -C
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "e8643552fde5: foobar"
   1 other heads for branch "default"
   $ rm added
   $ hg transplant --continue

tests/test-up-local-change.t

@@ -172,6 +172,7 b' create a second head'
   
   $ hg --debug up
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "1e71731e6fbb: 2"
   1 other heads for branch "default"
 
 test conflicting untracked files

tests/test-update-branches.t

@@ -94,6 +94,7 b' Cases are run as shown in that table, ro'
 
   $ norevtest 'none clean same'   clean 2
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "bd10386d478c: 2"
   1 other heads for branch "default"
   parent=2
 
@@ -141,6 +142,7 b' Cases are run as shown in that table, ro'
 
   $ norevtest 'none dirty cross'  dirty 2
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "bd10386d478c: 2"
   1 other heads for branch "default"
   parent=2
   M foo
@@ -177,6 +179,7 b' Cases are run as shown in that table, ro'
 
   $ norevtest '-c clean same'   clean 2 -c
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to "bd10386d478c: 2"
   1 other heads for branch "default"
   parent=2