Manually validate arguments for elfeed-curl-enqueue (#167).
Manually validate arguments for elfeed-curl-enqueue (#167).

Emacs won't catch it on its own until later once it's asynchronous,
which is a far worse place to find a problem.

holomorph/elfeed,emacsmirror/elfeed,seblemaguer/elfeed,seblemaguer/elfeed,skeeto/elfeed,holomorph/elfeed,emacsmirror/elfeed,skeeto/elfeed