Use test wrapper exit function

.travis.yml

server/tests/api/check-params/config.ts

server/tests/api/check-params/contact-form.ts

server/tests/api/check-params/debug.ts

server/tests/api/check-params/follows.ts

server/tests/api/check-params/jobs.ts

server/tests/api/check-params/logs.ts

server/tests/api/check-params/redundancy.ts

server/tests/api/check-params/search.ts

server/tests/api/check-params/services.ts

server/tests/api/check-params/user-notifications.ts

server/tests/api/check-params/user-subscriptions.ts

server/tests/api/check-params/users.ts

server/tests/api/check-params/video-abuses.ts

server/tests/api/check-params/video-blacklist.ts

server/tests/api/check-params/video-captions.ts

server/tests/api/check-params/video-channels.ts

server/tests/api/check-params/video-comments.ts

server/tests/api/check-params/video-imports.ts

server/tests/api/check-params/video-playlists.ts