--- a/mercurial/revlog.py	Sun Aug 18 00:45:33 2019 +0300
+++ b/mercurial/revlog.py	Sun Aug 18 02:28:42 2019 +0300
@@ -70,13 +70,13 @@
 )
 from .interfaces import (
     repository,
+    util as interfaceutil,
 )
 from .revlogutils import (
     deltas as deltautil,
     flagutil,
 )
 from .utils import (
-    interfaceutil,
     storageutil,
     stringutil,
 )