updated for version 7.4.619
Problem:    luaV_setref() not returning the correct value.
Solution:   Return one.
diff --git a/src/version.c b/src/version.c
index 791d007..8bf1fbb 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    619,
+/**/
     618,
 /**/
     617,