--- a/tests/test-diffdir.t Thu Jan 14 10:14:24 2016 -0800
+++ b/tests/test-diffdir.t Thu Jan 14 10:22:55 2016 -0800
@@ -68,3 +68,10 @@
+++ b/a2
@@ -0,0 +1,1 @@
+foo
+ $ hg diff --nodates --git
+ diff --git a/a2 b/a2
+ new file mode 100644
+ --- /dev/null
+ +++ b/a2
+ @@ -0,0 +1,1 @@
+ +foo