numeric.c: Add Integer#digits [Feature #12447] [ruby-core:75799]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55395 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
numeric.c: Add Integer#digits [Feature #12447] [ruby-core:75799]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55395 b2dd03c8-39d4-4d8f-98ff-823fe69b080e