Refactor fix_lshift
Refactor fix_rshift
Fix indent in bit_coerce
Merge pull request #2056 from suzukaze/fix-indent

Fix indent in bit_coerce
Merge branch 'Refactor-numeric.c' of https://github.com/suzukaze/mruby into suzukaze-Refactor-numeric.c
avoid function style parens after "return"; ref #2055
Merge branch 'master' of github.com:mruby/mruby