diff -r b9101467d88b -r 2c37f9dabc32 mercurial/policy.py
--- a/mercurial/policy.py	Sun Apr 23 16:10:51 2017 +0900
+++ b/mercurial/policy.py	Sun Apr 23 14:47:52 2017 +0900
@@ -75,7 +75,7 @@
     (r'cext', r'diffhelpers'): 1,
     (r'cext', r'mpatch'): 1,
     (r'cext', r'osutil'): 1,
-    (r'cext', r'parsers'): 1,
+    (r'cext', r'parsers'): 2,
 }
 
 # map import request to other package or module