[ruby/stringio] Bump version to 0.1.2

https://github.com/ruby/stringio/commit/8cbe3f7397
2020-07-19 00:44:56 +09:00 · 2020-07-19 00:44:56 +09:00 · 574871781b
--- a/ext/stringio/stringio.c
+++ b/ext/stringio/stringio.c
@ -11,7 +11,7 @@

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

-#define STRINGIO_VERSION "0.1.1"
+#define STRINGIO_VERSION "0.1.2"

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