Using double splat operator (#5859)

app/controllers/api/v1/accounts_controller.rb

app/helpers/admin/filter_helper.rb

app/helpers/application_helper.rb

app/helpers/routing_helper.rb

app/lib/activitypub/activity.rb

app/lib/extractor.rb

app/lib/formatter.rb

app/lib/ostatus/activity/base.rb

app/lib/ostatus/atom_serializer.rb

app/lib/provider_discovery.rb

app/lib/request.rb

app/mailers/notification_mailer.rb

app/mailers/user_mailer.rb

app/models/remote_follow.rb

app/models/session_activation.rb

app/presenters/account_relationships_presenter.rb

app/presenters/status_relationships_presenter.rb

app/services/activitypub/process_collection_service.rb

app/services/authorize_follow_service.rb

app/services/post_status_service.rb