--- a/tests/test-revset.t	Fri Feb 05 13:20:23 2016 +0100
+++ b/tests/test-revset.t	Fri Feb 05 22:32:05 2016 +0900
@@ -1222,7 +1222,7 @@
 test that chained `or` operations never eat up stack (issue4624)
 (uses `0:1` instead of `0` to avoid future optimization of trivial revisions)
 
-  $ hg log -T '{rev}\n' -r "`python -c "print '|'.join(['0:1'] * 500)"`"
+  $ hg log -T '{rev}\n' -r `python -c "print '+'.join(['0:1'] * 500)"`
   0
   1