updated for version 7.4.617
Problem:    Wrong ":argdo" range does not cause an error.
Solution:   Reset "cmd" to NULL. (Marcin Szamotulski, Ingo Karkat)
diff --git a/src/version.c b/src/version.c
index 2c21e4a..138a29a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    617,
+/**/
     616,
 /**/
     615,