Fix malformed ruby gemspec

invalid.rb

#!/usr/bin/env ruby
#
# Usage: curl -sL https://raw.github.com/gist/1650084/invalid.rb | ruby
#
require 'open3'
stdin, stdout, stderr = Open3.popen3('gem check')
invalid = stderr.read
errors  = invalid.scan(/\[(.+)\]:/).flatten
abort 'No errors in your gems specs' if errors.empty?
errors.each do |spec| 
  cmd = "gem install %s" % File.basename(spec, '.gemspec').gsub(/-[0-9\.]+[a-z]?$/) { |m| " -v #{m.sub(/^-/,'')}" }
  puts cmd
  system "#{cmd} 2> /dev/null"
end