--- a/tests/test-parse-date.out
+++ b/tests/test-parse-date.out
@@ -3,7 +3,7 @@ changeset 3:107ce1ee2b43 backs out chang
 merging with changeset 2:e6c3abc120e7
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
-abort: invalid date: 'should fail'
+abort: invalid date: 'should fail' see hg(1) manual page for details
 transaction abort!
 rollback completed
 abort: date exceeds 32 bits: 100000000000000000