mercurial/commands.py

--- a/mercurial/commands.py	Sun Apr 21 09:29:55 2019 -0700
+++ b/mercurial/commands.py	Sun Apr 21 09:34:16 2019 -0700
@@ -6167,6 +6167,8 @@
 
     Returns 0 on success, 1 if errors are encountered.
     """
+    opts = pycompat.byteskwargs(opts)
+
     level = None
     if opts['full']:
         level = verifymod.VERIFY_FULL