patch 8.0.1086: can't build with GTK 3

Problem:    Can't build with GTK 3.
Solution:   Rename function argument. (Kazunobu Kuriyama)
diff --git a/src/version.c b/src/version.c
index cb59634..d20af56 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1086,
+/**/
     1085,
 /**/
     1084,