* tool/rbuninstall.rb: show progress if tty and add --tty option.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42932 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* tool/rbuninstall.rb: fix for symlink to directory by removing
trailing slash which let File.symlink? return false.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39738 b2dd03c8-39d4-4d8f-98ff-823fe69b080e