patch 8.1.1124: insert completion flags are mixed up

Problem:    Insert completion flags are mixed up.
Solution:   Clean up flags use of ins_compl_add() and cp_flags.
diff --git a/src/version.c b/src/version.c
index d09ac29..8e3e639 100644
--- a/src/version.c
+++ b/src/version.c
@@ -772,6 +772,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1124,
+/**/
     1123,
 /**/
     1122,