diff -r ad6eb7d7dbca -r 19071b04c9c1 mercurial/commands.py
--- a/mercurial/commands.py	Thu Sep 08 18:29:53 2011 -0500
+++ b/mercurial/commands.py	Fri Sep 09 14:41:22 2011 -0500
@@ -3347,7 +3347,7 @@
      _('show changesets within the given named branch'), _('BRANCH')),
     ('P', 'prune', [],
      _('do not display revision or any of its ancestors'), _('REV')),
-    ('h', 'hidden', False, _('show hidden changesets')),
+    ('', 'hidden', False, _('show hidden changesets')),
     ] + logopts + walkopts,
     _('[OPTION]... [FILE]'))
 def log(ui, repo, *pats, **opts):