[stringio] Version 3.0.0

https://github.com/ruby/stringio/commit/831be01071
2020-12-18 09:24:37 +09:00 · 2020-12-18 09:24:37 +09:00 · c71934f8a5
--- a/ext/stringio/stringio.c
+++ b/ext/stringio/stringio.c
@ -11,7 +11,7 @@

 **********************************************************************/

-#define STRINGIO_VERSION "0.1.4"
+#define STRINGIO_VERSION "3.0.0"

 #include "ruby.h"
 #include "ruby/io.h"