tests: ignore git's output in test-subrepo-git.t git version 1.7.9.1 makes the testsuite fail with: @@ -482,7 +482,17 @@ Sticky repository, update --clean $ hg update --clean tip - Previous HEAD position was aa84837... f + Warning: you are leaving 2 commits behind, not connected to + any of your branches: + + aa84837 f + 126f2a1 gg + + If you want to keep them by creating a new branch, this may be a good time + to do so with: + + git branch new_branch_name aa84837ccfbdfedcdcdeeedc309d73e6eb069edc + HEAD is now at 32a3438... fff 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg id -n ERROR: test-subrepo-git.t output changed

--- a/tests/test-subrepo-git.t	Thu Mar 15 00:46:37 2012 +0900
+++ b/tests/test-subrepo-git.t	Thu Mar 15 23:02:31 2012 +0000
@@ -481,9 +481,7 @@
   $ cd ..
 
 Sticky repository, update --clean
-  $ hg update --clean tip
-  Previous HEAD position was aa84837... f
-  HEAD is now at 32a3438... fff
+  $ hg update --clean tip 2>/dev/null
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg id -n
   7