--- a/mercurial/merge.py	Mon Sep 23 20:08:52 2013 -0700
+++ b/mercurial/merge.py	Mon Sep 23 20:33:02 2013 -0700
@@ -669,7 +669,7 @@
     2 = abort: uncommitted changes (commit and merge, or update --clean to
                  discard changes)
     3 = abort: uncommitted changes (commit or update --clean to discard changes)
-    4 = abort: uncommitted local changes
+    4 = abort: uncommitted changes (checked in commands.py)
     5 = incompatible options (checked in commands.py)
 
     Return the same tuple as applyupdates().