patch 9.0.1735: Rename completion specific findex var

Problem: Rename completion specific findex var
Solution: Move "findex" static variable to xp_selected in expand_T

closes: #12548

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
diff --git a/src/version.c b/src/version.c
index ba42318..d4c6108 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1735,
+/**/
     1734,
 /**/
     1733,