updated for version 7.4.681

Problem:    MS-Windows: When Vim is minimized the window height is computed
            incorrectly.
Solution:   When minimized use the previously computed size. (Ingo Karkat)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    681,
 /**/
     680,
 /**/