Use mrb_bool for the 'b' format specifier of mrb_get_args
should call ensure before popping callinfo; cancel 8ce1ea84
Merge pull request #1200 from h2so5/get-args-format-boolean

Use mrb_bool for the 'b' format specifier of mrb_get_args
Merge branch 'master' of github.com:mruby/mruby
ensure clause should be executed only once; close #1185