diff --git a/src/testdir/todos.vim b/src/testdir/todos.vim
new file mode 100644
index 0000000..0256a51
--- /dev/null
+++ b/src/testdir/todos.vim
@@ -0,0 +1,3 @@
+:" Script to make sure a file is in "dos" file format.
+:set ff=dos
+:wq