In GM_uriFromUrl(): avoid infinite loops, fix silly copy/paste bug.
In GM_uriFromUrl(): avoid infinite loops, fix silly copy/paste bug.

Martii/greasemonkey,HasClass0/greasemonkey,Ventero/greasemonkey,the8472/greasemonkey,HasClass0/greasemonkey,Ventero/greasemonkey,Martii/greasemonkey,the8472/greasemonkey