* lib/csv.rb: Fixed a broken regular expression that was causing
  CSV to miss escaping some special meaning characters when used
  in parsing.
  Reported by David Unric
  [ruby-core:54986] [Bug #8405]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45374 b2dd03c8-39d4-4d8f-98ff-823fe69b080e