patch 7.4.1301
Problem:    Missing options in ch_open().
Solution:   Add s:chopt like in the other calls. (Ozaki Kiichi)
diff --git a/src/version.c b/src/version.c
index e19d205..3622533 100644
--- a/src/version.c
+++ b/src/version.c
@@ -748,6 +748,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1301,
+/**/
     1300,
 /**/
     1299,