updated for version 7.4b.021

Problem:    Pressing "u" after an external command results in multiple
            press-enter messages. (glts)
Solution:   Don't call hit_return_msg() when we have K_IGNORE. (Christian
            Brabandt)

src/message.c

@@ -1004,7 +1004,7 @@ wait_return(redraw)
 			quit_more = FALSE;
 			got_int = FALSE;
 		    }
-		    else
+		    else if (c != K_IGNORE)
 		    {
 			c = K_IGNORE;
 			hit_return_msg();

src/version.c

@@ -727,6 +727,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    21,
 /**/
     20,
 /**/