tests: handle Message-Id line wrapping in test-notify-changegroup.t

This fixes this test on Python 3 with a long hostname. See changeset
4128ffba4431 for details.

tests/test-notify-changegroup.t

@@ -1,216 +1,219 b''
 
   $ cat <<EOF >> $HGRCPATH
   > [extensions]
   > notify=
   > 
   > [hooks]
   > changegroup.notify = python:hgext.notify.hook
   > 
   > [notify]
   > sources = push
   > diffstat = False
   > maxsubject = 10
   > 
   > [usersubs]
   > foo@bar = *
   > 
   > [reposubs]
   > * = baz
   > EOF
   $ hg init a
 
 clone
 
   $ hg --traceback clone a b
   updating to branch default
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo a > b/a
 
 commit
 
   $ hg --traceback --cwd b commit -Ama
   adding a
   $ echo a >> b/a
 
 commit
 
   $ hg --traceback --cwd b commit -Amb
 
 push
 
   $ hg --traceback --cwd b push ../a 2>&1 |
+  >     "$PYTHON" $TESTDIR/unwrap-message-id.py | \
   >     "$PYTHON" -c 'from __future__ import print_function ; import sys,re; print(re.sub("\n\t", " ", sys.stdin.read()), end="")'
   pushing to ../a
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files
   MIME-Version: 1.0
   Content-Type: text/plain; charset="us-ascii"
   Content-Transfer-Encoding: 7bit
   Date: * (glob)
   Subject: * (glob)
   From: test
   X-Hg-Notification: changeset cb9a9f314b8b
   Message-Id: <*> (glob)
   To: baz, foo@bar
   
   changeset cb9a9f314b8b in $TESTTMP/a
   details: $TESTTMP/a?cmd=changeset;node=cb9a9f314b8b
   summary: a
   
   changeset ba677d0156c1 in $TESTTMP/a
   details: $TESTTMP/a?cmd=changeset;node=ba677d0156c1
   summary: b
   
   diffs (6 lines):
   
   diff -r 000000000000 -r ba677d0156c1 a
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/a	Thu Jan 01 00:00:00 1970 +0000
   @@ -0,0 +1,2 @@
   +a
   +a
   $ hg --cwd a rollback
   repository tip rolled back to revision -1 (undo push)
 
 unbundle with unrelated source
 
   $ hg --cwd b bundle ../test.hg ../a
   searching for changes
   2 changesets found
   $ hg --cwd a unbundle ../test.hg
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files
   new changesets cb9a9f314b8b:ba677d0156c1 (2 drafts)
   (run 'hg update' to get a working copy)
   $ hg --cwd a rollback
   repository tip rolled back to revision -1 (undo unbundle)
 
 unbundle with correct source
 
   $ hg --config notify.sources=unbundle --cwd a unbundle ../test.hg 2>&1 |
+  >     "$PYTHON" $TESTDIR/unwrap-message-id.py | \
   >     "$PYTHON" -c 'from __future__ import print_function ; import sys,re; print(re.sub("\n\t", " ", sys.stdin.read()), end="")'
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files
   new changesets cb9a9f314b8b:ba677d0156c1 (2 drafts)
   MIME-Version: 1.0
   Content-Type: text/plain; charset="us-ascii"
   Content-Transfer-Encoding: 7bit
   Date: * (glob)
   Subject: * (glob)
   From: test
   X-Hg-Notification: changeset cb9a9f314b8b
   Message-Id: <*> (glob)
   To: baz, foo@bar
   
   changeset cb9a9f314b8b in $TESTTMP/a
   details: $TESTTMP/a?cmd=changeset;node=cb9a9f314b8b
   summary: a
   
   changeset ba677d0156c1 in $TESTTMP/a
   details: $TESTTMP/a?cmd=changeset;node=ba677d0156c1
   summary: b
   
   diffs (6 lines):
   
   diff -r 000000000000 -r ba677d0156c1 a
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/a	Thu Jan 01 00:00:00 1970 +0000
   @@ -0,0 +1,2 @@
   +a
   +a
   (run 'hg update' to get a working copy)
 
 Check that using the first committer as the author of a changeset works:
 Check that the config option works.
 Check that the first committer is indeed used for "From:".
 Check that the merge user is NOT used for "From:"
 
 Create new file
 
   $ echo a > b/b
   $ echo b >> b/b
   $ echo c >> b/b
   $ hg --traceback --cwd b commit -Amnewfile -u committer_1
   adding b
 
 commit as one user
 
   $ echo x > b/b
   $ echo b >> b/b
   $ echo c >> b/b
   $ hg --traceback --cwd b commit -Amx -u committer_2
 
 commit as other user, change file so we can do an (automatic) merge
 
   $ hg --cwd b up 2
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo a > b/b
   $ echo b >> b/b
   $ echo y >> b/b
   $ hg --traceback --cwd b commit -Amy -u committer_3
   created new head
 
 merge as a different user
 
   $ hg --cwd b merge --config notify.fromauthor=True
   merging b
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ hg --traceback --cwd b commit -Am "merged"
 
 push
 
   $ hg --traceback --cwd b --config notify.fromauthor=True push ../a 2>&1 |
+  >     "$PYTHON" $TESTDIR/unwrap-message-id.py | \
   >     "$PYTHON" -c 'from __future__ import print_function ; import sys,re; print(re.sub("\n\t", " ", sys.stdin.read()), end="")'
   pushing to ../a
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 4 changes to 1 files
   MIME-Version: 1.0
   Content-Type: text/plain; charset="us-ascii"
   Content-Transfer-Encoding: 7bit
   Date: * (glob)
   Subject: * (glob)
   From: committer_1
   X-Hg-Notification: changeset 84e487dddc58
   Message-Id: <*> (glob)
   To: baz, foo@bar
   
   changeset 84e487dddc58 in $TESTTMP/a
   details: $TESTTMP/a?cmd=changeset;node=84e487dddc58
   summary: newfile
   
   changeset b29c7a2b6b0c in $TESTTMP/a
   details: $TESTTMP/a?cmd=changeset;node=b29c7a2b6b0c
   summary: x
   
   changeset 0957c7d64886 in $TESTTMP/a
   details: $TESTTMP/a?cmd=changeset;node=0957c7d64886
   summary: y
   
   changeset 485b4e6b0249 in $TESTTMP/a
   details: $TESTTMP/a?cmd=changeset;node=485b4e6b0249
   summary: merged
   
   diffs (7 lines):
   
   diff -r ba677d0156c1 -r 485b4e6b0249 b
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/b	Thu Jan 01 00:00:00 1970 +0000
   @@ -0,0 +1,3 @@
   +x
   +b
   +y
   $ hg --cwd a rollback
   repository tip rolled back to revision 1 (undo push)