--- a/mercurial/dispatch.py	Wed Nov 13 20:42:13 2019 +0100
+++ b/mercurial/dispatch.py	Sun Dec 01 18:46:10 2019 -0500
@@ -102,7 +102,7 @@
 
 
 def run():
-    b"run the command in sys.argv"
+    """run the command in sys.argv"""
     initstdio()
     with tracing.log('parse args into request'):
         req = request(pycompat.sysargv[1:])