Fixed misspellings reported at [Bug #16437], only in ruby and rubyspec.
This removes the related tests, and puts the related specs behind version guards. This affects all code in lib, including some libraries that may want to support older versions of Ruby.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63652 b2dd03c8-39d4-4d8f-98ff-823fe69b080e