patch 8.2.0865: syntax foldlevel is taken from the start of the line

Problem:    Syntax foldlevel is taken from the start of the line.
Solution:   Add ":syn foldlevel" to be able to use the minimal foldlevel in
            the line. (Brad King, closes #6087)
diff --git a/src/version.c b/src/version.c
index 6f77139..4fc7c3c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    865,
+/**/
     864,
 /**/
     863,