Remove some roundoff from mrb_flo_to_str
Merge pull request #2532 from chasonr/float-to-string

Remove some roundoff from mrb_flo_to_str
Refactor flo_mod func in numeric.c
Fix indents in numeric.c
Merge pull request #2534 from suzukaze/refactor-numeric.c

Refactor flo_mod func in numeric.c
Merge pull request #2533 from suzukaze/fix-indents

Fix indents in numeric.c
removed unused variable in range_beg_len
Merge pull request #2535 from kkkkkt/remove-unused-variable

removed unused variable in range_beg_len