mercurial/hook.py

--- a/mercurial/hook.py	Sat Jun 17 15:05:11 2017 +0530
+++ b/mercurial/hook.py	Sat Jun 17 15:29:26 2017 +0530
@@ -205,6 +205,7 @@
     return r
 
 def runhooks(ui, repo, htype, hooks, throw=False, **args):
+    args = pycompat.byteskwargs(args)
     res = {}
     oldstdout = -1