updated for version 7.3.679
Problem:    Ruby detection uses Config, newer Ruby versions use RbConfig.
Solution:   Detect the need to use RbConfig. (Vit Ondruch)
diff --git a/src/version.c b/src/version.c
index 935dfea..9ef1e8f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -720,6 +720,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    679,
+/**/
     678,
 /**/
     677,