updated for version 7.3.780
Problem:    char2nr() and nr2char() always use 'encoding'.
Solution:   Add argument to use utf-8 characters. (Yasuhiro Matsumoto)
diff --git a/src/version.c b/src/version.c
index a8cfdc5..72b552a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -726,6 +726,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    780,
+/**/
     779,
 /**/
     778,