diff -r 0f4c2c70e26e -r ffd08ec22955 tests/test-grep.t
--- a/tests/test-grep.t	Wed Jul 11 13:48:44 2018 +0200
+++ b/tests/test-grep.t	Wed Jul 11 21:15:52 2018 +0900
@@ -409,7 +409,7 @@
   adding new
   $ hg grep -r "." "unmod"
   [1]
-  $ hg grep -r "." "unmod" --allfiles
+  $ hg grep -r "." "unmod" --all-files
   um:1:unmod
 
   $ cd ..