Fix Formatting in Optional Parameters
Fix Formatting in Optional Parameters

srawlins/dartdoc,keertip/dartdoc,dart-lang/dartdoc,keertip/dartdoc,jakemac53/dartdoc,astashov/dartdoc,astashov/dartdoc,dart-lang/dartdoc,guillermooo-forks/dartdoc,a14n/dartdoc,dart-lang/dartdoc,dart-lang/dartdoc,a14n/dartdoc,guillermooo-forks/dartdoc,joojis/dartdoc,a14n/dartdoc,joojis/dartdoc,srawlins/dartdoc,d2m/dartdoc-2015,astashov/dartdoc,joojis/dartdoc,srawlins/dartdoc,d2m/dartdoc-2015,jakemac53/dartdoc,d2m/dartdoc-2015,guillermooo-forks/dartdoc,astashov/dartdoc,srawlins/dartdoc,jakemac53/dartdoc,keertip/dartdoc,d2m/dartdoc-2015,guillermooo-forks/dartdoc,jakemac53/dartdoc,keertip/dartdoc