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/testdir/test_utf8.ok b/src/testdir/test_utf8.ok
index c5bed54..8ccdd6d 100644
--- a/src/testdir/test_utf8.ok
+++ b/src/testdir/test_utf8.ok
@@ -2,3 +2,18 @@
 axaa
 xあああ
 bxbb
+1
+1
+1
+3
+3
+3
+2
+2
+1
+3
+3
+1
+1
+1
+1