updated for version 7.3.684
Problem:    "make test" does not delete lua.vim.
Solution:   Add lua.vim to the clean target. (Simon Ruderich)
diff --git a/src/version.c b/src/version.c
index 62e0f4b..63a5136 100644
--- a/src/version.c
+++ b/src/version.c
@@ -720,6 +720,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    684,
+/**/
     683,
 /**/
     682,