patch 7.4.771

Problem:    Search does not handle multi-byte character at the start position
            correctly.
Solution:   Take byte size of character into account. (Yukihiro Nakadaira)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    771,
 /**/
     770,
 /**/