patch 7.4.755
Problem:    It is not easy to count the number of characters.
Solution:   Add the skipcc argument to strchars(). (Hirohito Higashi, Ken
            Takata)
diff --git a/src/version.c b/src/version.c
index eeef1c7..e712dc4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    755,
+/**/
     754,
 /**/
     753,