patch 7.4.2345

Problem:    For MinGW RUBY_API_VER_LONG isn't set correctly.  Many default
            version numbers are outdated.
Solution:   Set RUBY_API_VER_LONG to RUBY_VER_LONG. Use latest stable releases
            for defaults. (Ken Takata)

src/version.c

@@ -763,6 +763,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2345,
 /**/
     2344,
 /**/