diff -r b62000a28812 -r 1c93e0237a24 mercurial/revset.py
--- a/mercurial/revset.py	Fri Jul 06 21:41:36 2018 +0900
+++ b/mercurial/revset.py	Fri Jul 06 21:49:25 2018 +0900
@@ -13,6 +13,7 @@
 from . import (
     dagop,
     destutil,
+    diffutil,
     encoding,
     error,
     hbisect,
@@ -33,7 +34,6 @@
 )
 from .utils import (
     dateutil,
-    diffutil,
     stringutil,
 )