# File vendor/rails/activesupport/lib/active_support/vendor/i18n-0.1.3/lib/i18n/exceptions.rb, line 14
14:     def initialize(locale, key, options)
15:       @key, @locale, @options = key, locale, options
16:       keys = I18n.send(:normalize_translation_keys, locale, key, options[:scope])
17:       keys << 'no key' if keys.size < 2
18:       super "translation missing: #{keys.join(', ')}"
19:     end