Update test/scripts/filters/external_link.js
Update test/scripts/filters/external_link.js

Co-Authored-By: Sukka <c6d889f77d1e4fba6de1c7470486ffb04e65df7a@gmail.com>
hexojs/hexo,ppker/hexo,ppker/hexo,kywk/hexi,hexojs/hexo,kywk/hexi