diff -r efebc9f52ecb -r d3ab31bf9c0e tests/test-largefiles-misc.t
--- a/tests/test-largefiles-misc.t	Mon Jun 12 11:24:21 2017 -0700
+++ b/tests/test-largefiles-misc.t	Tue Jun 13 22:24:41 2017 -0400
@@ -1075,6 +1075,10 @@
   $ hg -R subrepo-root status -S
   M large
   M no-largefiles/normal1
+  $ hg -R subrepo-root extdiff -p echo -S --config extensions.extdiff=
+  "*\\no-largefiles\\normal1" "*\\no-largefiles\\normal1" (glob) (windows !)
+  */no-largefiles/normal1 */no-largefiles/normal1 (glob) (no-windows !)
+  [1]
   $ hg -R subrepo-root revert --all
   reverting subrepo-root/.hglf/large (glob)
   reverting subrepo no-largefiles