diff -r cff0f5926797 -r e1677cc29da6 mercurial/patch.py
--- a/mercurial/patch.py	Thu Sep 29 10:16:34 2016 +0200
+++ b/mercurial/patch.py	Sat Nov 12 13:36:17 2016 +0100
@@ -2550,7 +2550,7 @@
     addresult()
     return results
 
-def diffstat(lines, width=80, git=False):
+def diffstat(lines, width=80):
     output = []
     stats = diffstatdata(lines)
     maxname, maxtotal, totaladds, totalremoves, hasbinary = diffstatsum(stats)