none?

# File lib/bundler/rubygems_ext.rb, line 174
    def none?
      # note that it might be tempting to replace with with RubyGems 2.0's
      # improved implementation. Don't. It requires `DefaultRequirement` to be
      # defined, and more importantantly, these overrides are not used when the
      # running RubyGems defines these methods
      to_s == ">= 0"
    end