updated for version 7.3.620
Problem:    Building with recent Ruby on Win32 doesn't work.
Solution:   Add a separate argument for the API version. (Yasuhiro Matsumoto)
diff --git a/src/version.c b/src/version.c
index 285bdfc..0be8c2b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -715,6 +715,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    620,
+/**/
     619,
 /**/
     618,