updated for version 7.3.785

Problem:    Crash with specific use of search pattern.
Solution:   Initialize reg_buf to curbuf.

src/version.c

@@ -725,6 +725,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    785,
 /**/
     784,
 /**/