patch 9.0.1789: too early declaration of variable in pum_set_selected()

Problem:  too early declaration of variable in pum_set_selected()
Solution: Move declaration to where it is actually used

closes: #12915

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: mathew <glephunter@gmail.com>
diff --git a/src/version.c b/src/version.c
index d6e259c..eb7d598 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1789,
+/**/
     1788,
 /**/
     1787,