patch 7.4.1603

Problem:    Timer with an ":echo" command messes up display.
Solution:   Redraw depending on the mode. (Hirohito Higashi)  Avoid the more
            prompt being used recursively.

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1603,
 /**/
     1602,
 /**/