status: add missing ":" to help text

mercurial/commands.py

@@ -5125,7 +5125,8 b' def status(ui, repo, *pats, **opts):'
 
       Examples:
 
-      - show changes in the working directory relative to a changeset:
+      - show changes in the working directory relative to a
+        changeset::
 
           hg status --rev 9353