patch 9.0.1451: unnecessary redrawing when 'showcmdloc' is not "last"

Problem:    Unnecessary redrawing when 'showcmdloc' is not "last".
Solution:   Redraw later when "showcmd_is_clear" is set. (Luuk van Baal,
            closes #12260)
diff --git a/src/version.c b/src/version.c
index ae81daa..e55ff4a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1451,
+/**/
     1450,
 /**/
     1449,