merge revision(s) 56550:
* ext/bigdecimal/bigdecimal.c: Import changes from ruby/bigdecimal repository.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@56562 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 56550:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@56562 b2dd03c8-39d4-4d8f-98ff-823fe69b080e