* tool/release.sh: need -f option because this overwrite the previous links if they exist.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45963 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-05-17

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45964 b2dd03c8-39d4-4d8f-98ff-823fe69b080e