updated for version 7.2.407

Problem:    When using an expression in ":s" backslashes in the result are
            dropped. (Sergey Goldgaber, Christian Brabandt)
Solution:   Double backslashes.

src/version.c

@@ -681,6 +681,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    407,
 /**/
     406,
 /**/