* numeric.c: [DOC] improve rdoc formatting for parameters and links


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41989 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-07-16

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41990 b2dd03c8-39d4-4d8f-98ff-823fe69b080e