diff -r 4b1af1c867fa -r 5c379b1f56c7 mercurial/scmwindows.py
--- a/mercurial/scmwindows.py	Thu Oct 20 21:38:44 2016 +0900
+++ b/mercurial/scmwindows.py	Thu Oct 20 21:42:11 2016 +0900
@@ -53,5 +53,5 @@
         path.append(os.path.join(userprofile, '.hgrc'))
     return path
 
-def termwidth():
+def termwidth(ui):
     return win32.termwidth()