diff -r d75aa756149b -r a3dcc59054ca mercurial/commands.py
--- a/mercurial/commands.py	Fri Feb 10 22:34:13 2012 +0100
+++ b/mercurial/commands.py	Fri Feb 10 16:09:30 2012 -0600
@@ -4261,7 +4261,7 @@
 
 def postincoming(ui, repo, modheads, optupdate, checkout):
     if modheads == 0:
-        return 1
+        return
     if optupdate:
         movemarkfrom = repo['.'].node()
         try:
@@ -4312,8 +4312,7 @@
     If SOURCE is omitted, the 'default' path will be used.
     See :hg:`help urls` for more information.
 
-    Returns 0 on success, 1 if no changes found or an update had
-    unresolved files.
+    Returns 0 on success, 1 if an update had unresolved files.
     """
     source, branches = hg.parseurl(ui.expandpath(source), opts.get('branch'))
     other = hg.peer(repo, opts, source)