tests: use positive revision numbers in test-strip-cross.t

It took me a long time to realize that '-r -1' was pulling revision -1
because I didn't even notice the minus sign until I tried changing the
revision number. The order of arguments doesn't matter, so I changed
from decreasing order to increasing while at it.

Differential Revision: https://phab.mercurial-scm.org/D6790

tests/test-strip-cross.t

@@ -1,143 +1,143 b''
 test stripping of filelogs where the linkrev doesn't always increase
 
   $ echo '[extensions]' >> $HGRCPATH
   $ echo 'strip =' >> $HGRCPATH
   $ hg init orig
   $ cd orig
   $ commit()
   > {
   >     hg up -qC null
   >     count=1
   >     for i in "$@"; do
   >         for f in $i; do
   >             echo $count > $f
   >         done
   >         count=`expr $count + 1`
   >     done
   >     hg commit -qAm "$*"
   > }
 
 2 1 0 2 0 1 2
 
   $ commit '201 210'
   $ commit '102 120' '210'
   $ commit '021'
   $ commit '201' '021 120'
   $ commit '012 021' '102 201' '120 210'
   $ commit 'manifest-file'
   $ commit '102 120' '012 210' '021 201'
   $ commit '201 210' '021 120' '012 102'
   $ HGUSER=another-user; export HGUSER
   $ commit 'manifest-file'
   $ commit '012' 'manifest-file'
   $ cd ..
-  $ hg clone -q -U -r -1 -r -2 -r -3 -r -4 -r -6 orig crossed
+  $ hg clone -q -U -r 4 -r 6 -r 7 -r 8 -r 9 orig crossed
   $ cd crossed
   $ hg debugindex --manifest
      rev linkrev nodeid       p1           p2
        0       0 6f105cbb914d 000000000000 000000000000
        1       3 1b55917b3699 000000000000 000000000000
        2       1 8f3d04e263e5 000000000000 000000000000
        3       2 f0ef8726ac4f 000000000000 000000000000
        4       4 0b76e38b4070 000000000000 000000000000
 
   $ for i in 012 021 102 120 201 210 manifest-file; do
   >     echo $i
   >     hg debugindex $i
   >     echo
   > done
   012
      rev linkrev nodeid       p1           p2
        0       0 b8e02f643373 000000000000 000000000000
        1       1 5d9299349fc0 000000000000 000000000000
        2       2 2661d26c6496 000000000000 000000000000
   
   021
      rev linkrev nodeid       p1           p2
        0       0 b8e02f643373 000000000000 000000000000
        1       2 5d9299349fc0 000000000000 000000000000
        2       1 2661d26c6496 000000000000 000000000000
   
   102
      rev linkrev nodeid       p1           p2
        0       1 b8e02f643373 000000000000 000000000000
        1       0 5d9299349fc0 000000000000 000000000000
        2       2 2661d26c6496 000000000000 000000000000
   
   120
      rev linkrev nodeid       p1           p2
        0       1 b8e02f643373 000000000000 000000000000
        1       2 5d9299349fc0 000000000000 000000000000
        2       0 2661d26c6496 000000000000 000000000000
   
   201
      rev linkrev nodeid       p1           p2
        0       2 b8e02f643373 000000000000 000000000000
        1       0 5d9299349fc0 000000000000 000000000000
        2       1 2661d26c6496 000000000000 000000000000
   
   210
      rev linkrev nodeid       p1           p2
        0       2 b8e02f643373 000000000000 000000000000
        1       1 5d9299349fc0 000000000000 000000000000
        2       0 2661d26c6496 000000000000 000000000000
   
   manifest-file
      rev linkrev nodeid       p1           p2
        0       3 b8e02f643373 000000000000 000000000000
        1       4 5d9299349fc0 000000000000 000000000000
   
   $ cd ..
   $ for i in 0 1 2 3 4; do
   >     hg clone -q -U --pull crossed $i
   >     echo "% Trying to strip revision $i"
   >     hg --cwd $i strip $i
   >     echo "% Verifying"
   >     hg --cwd $i verify
   >     echo
   > done
   % Trying to strip revision 0
   saved backup bundle to $TESTTMP/0/.hg/strip-backup/*-backup.hg (glob)
   % Verifying
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   checked 4 changesets with 15 changes to 7 files
   
   % Trying to strip revision 1
   saved backup bundle to $TESTTMP/1/.hg/strip-backup/*-backup.hg (glob)
   % Verifying
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   checked 4 changesets with 14 changes to 7 files
   
   % Trying to strip revision 2
   saved backup bundle to $TESTTMP/2/.hg/strip-backup/*-backup.hg (glob)
   % Verifying
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   checked 4 changesets with 14 changes to 7 files
   
   % Trying to strip revision 3
   saved backup bundle to $TESTTMP/3/.hg/strip-backup/*-backup.hg (glob)
   % Verifying
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   checked 4 changesets with 19 changes to 7 files
   
   % Trying to strip revision 4
   saved backup bundle to $TESTTMP/4/.hg/strip-backup/*-backup.hg (glob)
   % Verifying
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   checked 4 changesets with 19 changes to 7 files