# File lib/rubygems/indexer.rb, line 627
  def sanitize_string(string)
    # HACK the #to_s is in here because RSpec has an Array of Arrays of
    # Strings for authors.  Need a way to disallow bad values on gempsec
    # generation.  (Probably won't happen.)
    string ? string.to_s.to_xs : string
  end