mruby/mruby — pull request #2648 by cubicdaiya (2014-11-22 01:52:26+00:00)
Title: use mrb_str_xxx_lit for mrdb.

Against string-literals,

* `mrb_str_new_cstr` -> `mrb_str_new_lit`
* `mrb_str_cat_cstr` -> `mrb_str_cat_lit`