diff -r b68797f244e4 -r c7d30fdb13b2 mercurial/commands.py
--- a/mercurial/commands.py	Wed Oct 21 00:18:11 2015 +0200
+++ b/mercurial/commands.py	Tue Oct 20 18:46:00 2015 -0400
@@ -2683,7 +2683,7 @@
           _('record parent information for the precursor')),
          ('r', 'rev', [], _('display markers relevant to REV')),
         ] + commitopts2,
-         _('[OBSOLETED [REPLACEMENT] [REPL... ]'))
+         _('[OBSOLETED [REPLACEMENT ...]]'))
 def debugobsolete(ui, repo, precursor=None, *successors, **opts):
     """create arbitrary obsolete marker