test: fix test-sparse-revlog output after debugdeltachain change

We need to get this test covered by the CI, in the meantime, here is a quick fix.

tests/test-sparse-revlog.t

@@ -1,194 +1,194 b''
 ====================================
 Test delta choice with sparse revlog
 ====================================
 
 Sparse-revlog usually shows the most gain on Manifest. However, it is simpler
 to general an appropriate file, so we test with a single file instead. The
 goal is to observe intermediate snapshot being created.
 
 We need a large enough file. Part of the content needs to be replaced
 repeatedly while some of it changes rarely.
 
   $ bundlepath="$TESTDIR/artifacts/cache/big-file-churn.hg"
 
   $ expectedhash=`cat "$bundlepath".md5`
 
 #if slow
 
   $ if [ ! -f "$bundlepath" ]; then
   >     "$TESTDIR"/artifacts/scripts/generate-churning-bundle.py > /dev/null
   > fi
 
 #else
 
   $ if [ ! -f "$bundlepath" ]; then
   >     echo 'skipped: missing artifact, run "'"$TESTDIR"'/artifacts/scripts/generate-churning-bundle.py"'
   >     exit 80
   > fi
 
 #endif
 
   $ currenthash=`f -M "$bundlepath" | cut -d = -f 2`
   $ if [ "$currenthash" != "$expectedhash" ]; then
   >     echo 'skipped: outdated artifact, md5 "'"$currenthash"'" expected "'"$expectedhash"'" run "'"$TESTDIR"'/artifacts/scripts/generate-churning-bundle.py"'
   >     exit 80
   > fi
 
   $ cat >> $HGRCPATH << EOF
   > [format]
   > sparse-revlog = yes
   > maxchainlen = 15
   > [storage]
   > revlog.optimize-delta-parent-choice = yes
   > revlog.reuse-external-delta = no
   > EOF
   $ hg init sparse-repo
   $ cd sparse-repo
   $ hg unbundle $bundlepath
   adding changesets
   adding manifests
   adding file changes
   added 5001 changesets with 5001 changes to 1 files (+89 heads)
   new changesets 9706f5af64f4:d9032adc8114 (5001 drafts)
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg up
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to "d9032adc8114: commit #5000"
   89 other heads for branch "default"
 
   $ hg log --stat -r 0:3
   changeset:   0:9706f5af64f4
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     initial commit
   
    SPARSE-REVLOG-TEST-FILE |  10500 ++++++++++++++++++++++++++++++++++++++++++++++
    1 files changed, 10500 insertions(+), 0 deletions(-)
   
   changeset:   1:724907deaa5e
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     commit #1
   
    SPARSE-REVLOG-TEST-FILE |  1068 +++++++++++++++++++++++-----------------------
    1 files changed, 534 insertions(+), 534 deletions(-)
   
   changeset:   2:62c41bce3e5d
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     commit #2
   
    SPARSE-REVLOG-TEST-FILE |  1068 +++++++++++++++++++++++-----------------------
    1 files changed, 534 insertions(+), 534 deletions(-)
   
   changeset:   3:348a9cbd6959
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     commit #3
   
    SPARSE-REVLOG-TEST-FILE |  1068 +++++++++++++++++++++++-----------------------
    1 files changed, 534 insertions(+), 534 deletions(-)
   
 
   $ f -s .hg/store/data/*.d
   .hg/store/data/_s_p_a_r_s_e-_r_e_v_l_o_g-_t_e_s_t-_f_i_l_e.d: size=58616973
   $ hg debugrevlog *
   format : 1
   flags  : generaldelta
   
   revisions     :     5001
       merges    :      625 (12.50%)
       normal    :     4376 (87.50%)
   revisions     :     5001
       empty     :        0 ( 0.00%)
                      text  :        0 (100.00%)
                      delta :        0 (100.00%)
       snapshot  :      383 ( 7.66%)
         lvl-0   :              3 ( 0.06%)
         lvl-1   :             18 ( 0.36%)
         lvl-2   :             62 ( 1.24%)
         lvl-3   :            108 ( 2.16%)
         lvl-4   :            191 ( 3.82%)
         lvl-5   :              1 ( 0.02%)
       deltas    :     4618 (92.34%)
   revision size : 58616973
       snapshot  :  9247844 (15.78%)
         lvl-0   :         539532 ( 0.92%)
         lvl-1   :        1467743 ( 2.50%)
         lvl-2   :        1873820 ( 3.20%)
         lvl-3   :        2326874 ( 3.97%)
         lvl-4   :        3029118 ( 5.17%)
         lvl-5   :          10757 ( 0.02%)
       deltas    : 49369129 (84.22%)
   
   chunks        :     5001
       0x28      :     5001 (100.00%)
   chunks size   : 58616973
       0x28      : 58616973 (100.00%)
   
   avg chain length  :        9
   max chain length  :       15
   max chain reach   : 27366701
   compression ratio :       29
   
   uncompressed data size (min/max/avg) : 346468 / 346472 / 346471
   full revision size (min/max/avg)     : 179288 / 180786 / 179844
   inter-snapshot size (min/max/avg)    : 10757 / 169507 / 22916
       level-1   (min/max/avg)          : 13905 / 169507 / 81541
       level-2   (min/max/avg)          : 10887 / 83873 / 30222
       level-3   (min/max/avg)          : 10911 / 43047 / 21545
       level-4   (min/max/avg)          : 10838 / 21390 / 15859
       level-5   (min/max/avg)          : 10757 / 10757 / 10757
   delta size (min/max/avg)             : 9672 / 108072 / 10690
   
   deltas against prev  : 3906 (84.58%)
       where prev = p1  : 3906     (100.00%)
       where prev = p2  :    0     ( 0.00%)
       other            :    0     ( 0.00%)
   deltas against p1    :  649 (14.05%)
   deltas against p2    :   63 ( 1.36%)
   deltas against other :    0 ( 0.00%)
 
 
 Test `debug-delta-find`
 -----------------------
 
   $ ls -1
   SPARSE-REVLOG-TEST-FILE
-  $ hg debugdeltachain SPARSE-REVLOG-TEST-FILE | grep other | tail -1
-     4971       3        5     4930   other      19179     346472     427596   1.23414  15994877  15567281   36.40652     427596     179288   1.00000        5
+  $ hg debugdeltachain SPARSE-REVLOG-TEST-FILE | grep snap | tail -1
+     4971    4970      -1       3        5     4930    snap      19179     346472     427596   1.23414  15994877  15567281   36.40652     427596     179288   1.00000        5
   $ hg debug-delta-find SPARSE-REVLOG-TEST-FILE 4971
   DBG-DELTAS-SEARCH: SEARCH rev=4971
   DBG-DELTAS-SEARCH: ROUND #1 - 2 candidates - search-down
   DBG-DELTAS-SEARCH:   CANDIDATE: rev=4962
   DBG-DELTAS-SEARCH:     type=snapshot-4
   DBG-DELTAS-SEARCH:     size=18296
   DBG-DELTAS-SEARCH:     base=4930
   DBG-DELTAS-SEARCH:     uncompressed-delta-size=30377
   DBG-DELTAS-SEARCH:     delta-search-time=* (glob)
   DBG-DELTAS-SEARCH:     DELTA: length=16872 (BAD)
   DBG-DELTAS-SEARCH:   CANDIDATE: rev=4971
   DBG-DELTAS-SEARCH:     type=snapshot-4
   DBG-DELTAS-SEARCH:     size=19179
   DBG-DELTAS-SEARCH:     base=4930
   DBG-DELTAS-SEARCH:     TOO-HIGH
   DBG-DELTAS-SEARCH: ROUND #2 - 1 candidates - search-down
   DBG-DELTAS-SEARCH:   CANDIDATE: rev=4930
   DBG-DELTAS-SEARCH:     type=snapshot-3
   DBG-DELTAS-SEARCH:     size=39228
   DBG-DELTAS-SEARCH:     base=4799
   DBG-DELTAS-SEARCH:     uncompressed-delta-size=33050
   DBG-DELTAS-SEARCH:     delta-search-time=* (glob)
   DBG-DELTAS-SEARCH:     DELTA: length=19179 (GOOD)
   DBG-DELTAS-SEARCH: ROUND #3 - 1 candidates - refine-down
   DBG-DELTAS-SEARCH:   CONTENDER: rev=4930 - length=19179
   DBG-DELTAS-SEARCH:   CANDIDATE: rev=4799
   DBG-DELTAS-SEARCH:     type=snapshot-2
   DBG-DELTAS-SEARCH:     size=50213
   DBG-DELTAS-SEARCH:     base=4623
   DBG-DELTAS-SEARCH:     uncompressed-delta-size=82661
   DBG-DELTAS-SEARCH:     delta-search-time=* (glob)
   DBG-DELTAS-SEARCH:     DELTA: length=49132 (BAD)
   DBG-DELTAS: FILELOG:SPARSE-REVLOG-TEST-FILE: rev=4971: search-rounds=3 try-count=3 - delta-type=snapshot snap-depth=4 - p1-chain-length=15 p2-chain-length=-1 - duration=* (glob)
 
   $ cd ..