patch 7.4.1398
Problem:    The close-cb option is not implemented yet.
Solution:   Implemente close-cb. (Yasuhiro Matsumoto)
diff --git a/src/version.c b/src/version.c
index b8cd111..c23db82 100644
--- a/src/version.c
+++ b/src/version.c
@@ -749,6 +749,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1398,
+/**/
     1397,
 /**/
     1396,