updated for version 7.4.521
Problem:    When using "vep" a mark is moved to the next line. (Maxi Padulo,
            Issue 283)
Solution:   Decrement the line number. (Christian Brabandt)
diff --git a/src/version.c b/src/version.c
index 20cafae..758c686 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    521,
+/**/
     520,
 /**/
     519,