updated for version 7.4.588
Problem:    ":0argedit foo" puts the new argument in the second place instead
            of the first.
Solution:   Adjust the range type. (Ingo Karkat)
diff --git a/src/testdir/test_argument_0count.ok b/src/testdir/test_argument_0count.ok
new file mode 100644
index 0000000..ee5daea
--- /dev/null
+++ b/src/testdir/test_argument_0count.ok
@@ -0,0 +1,5 @@
+added a b c d
+added a third b c d
+edited a b c d
+edited a third b c d
+