Reformat long lines

Rearrange this ruby method call to put each parameter on its own line. Could become a useful macro.

Input

def default_i18n_subject
  mailer_scope = self.class.mailer_name.gsub('/', '.')
  I18n.t(:subject, :scope => [mailer_scope, action_name], :default => action_name.humanize)
end

Output

def default_i18n_subject
  mailer_scope = self.class.mailer_name.gsub('/', '.')
  I18n.t(:subject,
         :scope => [mailer_scope, action_name],
         :default => action_name.humanize)
end