patch 9.1.0490: minor style problems with patch 9.1.0487

Problem:  minor style problems with patch 9.1.0487
Solution: use shown_compl instead of after_first_compl variable
          (glepnir)

closes: #15008

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
fix(completion): use exist shown_compl instead after_first_compl
diff --git a/src/version.c b/src/version.c
index f153bfb..a13c31c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    490,
+/**/
     489,
 /**/
     488,