diff --git nonempty nonempty --- nonempty nonempty -1 line1 line2 diff

diff --git a/nonempty b/nonempty
--- a/nonempty
+++ b/nonempty
@@ -1,1 +1,2 @@
 line1
+line2
diff --git a/a b/a
--- a/a
+++ b/a
@@ -0,0 +1,1 @@
+a
diff --git a/b b/b
new file mode 100644