Add a multibyte string to the elfeed-ref test.
Add a multibyte string to the elfeed-ref test.

algernon/elfeed,jinnovation/elfeed,seblemaguer/elfeed,skeeto/elfeed,holomorph/elfeed,emacsmirror/elfeed,skeeto/elfeed,algernon/elfeed,holomorph/elfeed,jinnovation/elfeed,seblemaguer/elfeed,abo-abo/elfeed,emacsmirror/elfeed,daimrod/elfeed,daimrod/elfeed