Fix misrecognition of commands

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Hash: SHA1

Fix misrecognition of commands

manifest hash: e8a19b922c3129c37050589edfb83d742c08a808
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mercurial/commands.py

@@ -627,7 +627,7 b' norepo = "init branch help debugindex de'
 def find(cmd):
     i = None
     for e in table.keys():
-        if re.match(e + "$", cmd):
+        if re.match("(%s)$" % e, cmd):
             return table[e]
 
     raise UnknownCommand(cmd)