# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@ens-lyon.org>
# Date 1489560408 25200
# Node ID b8848750a3c116071516c6748d34010190e670cc
# Parent  e83302d437485620c9bc25921f724af34cd5dd55
mq: don't use mutable default argument value

Caught by pylint.

diff -r e83302d43748 -r b8848750a3c1 hgext/mq.py
--- a/hgext/mq.py	Mon Mar 13 21:43:17 2017 -0700
+++ b/hgext/mq.py	Tue Mar 14 23:46:48 2017 -0700
@@ -3439,7 +3439,9 @@
                     raise error.Abort(errmsg)
 
         def commit(self, text="", user=None, date=None, match=None,
-                   force=False, editor=False, extra={}):
+                   force=False, editor=False, extra=None):
+            if extra is None:
+                extra = {}
             self.abortifwdirpatched(
                 _('cannot commit over an applied mq patch'),
                 force)