patch 8.0.1603: cannot build with +terminal but without +menu

Problem:    Cannot build with +terminal but without +menu.
Solution:   Add #ifdef. (Damien)
diff --git a/src/version.c b/src/version.c
index 2a537e6..d1fd6ea 100644
--- a/src/version.c
+++ b/src/version.c
@@ -767,6 +767,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1603,
+/**/
     1602,
 /**/
     1601,