patch 9.1.1005: completion text is highlighted even with no pattern found

Problem:  completion text is highlighted even with no pattern found
Solution: use ins_compl_leader_len() instead of checking
          compl_leader.length (glepnir)

closes: #16422

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 6179cb3..1927d9e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1005,
+/**/
     1004,
 /**/
     1003,