patch 7.4.783

Problem:    copy_chars() and copy_spaces() are inefficient.
Solution:   Use memset() instead. (Dominique Pelle)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    783,
 /**/
     782,
 /**/