patch 8.0.1513: the jumplist is not always properly cleaned up

Problem:    The jumplist is not always properly cleaned up.
Solution:   Call fname2fnum() before cleanup_jumplist(). (Yegappan Lakshmanan)
diff --git a/src/version.c b/src/version.c
index 965df22..e4f6f96 100644
--- a/src/version.c
+++ b/src/version.c
@@ -772,6 +772,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1513,
+/**/
     1512,
 /**/
     1511,