patch 9.0.1290: CTRL-N and -P on cmdline don't trigger CmdlineChanged

Problem:    CTRL-N and -P on cmdline don't trigger CmdlineChanged.
Solution:   Jump to cmdline_changed instead of cmdline_not_changed.
            (closes #11956)
diff --git a/src/version.c b/src/version.c
index d7b12b1..3523df2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1290,
+/**/
     1289,
 /**/
     1288,