patch 7.4.1782
Problem:    strcharpart() does not work properly with some multi-byte
            characters.
Solution:   Use mb_cptr2len() instead of mb_char2len(). (Hirohito Higashi)
diff --git a/src/version.c b/src/version.c
index 2ae156c..09372ef 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1782,
+/**/
     1781,
 /**/
     1780,