mruby/mruby — pull request #620 by tricknotes (2012-12-11 04:44:02+00:00)
Title: Make Hash#inspect safety in recursive

`Hash#inspect` is unsafety.
``` sh
$ ./bin/mruby -e 'h = {}; h[:h]=h; puts h'
trace:
[1] (unknown):-1:in Kernel#puts
[0] -e:1
```

I know that this issue has been discussed in #57, but I'd like mruby to be safety.