Thread:Support/Mwe-upwiz-help-desk-url should no point to the main namespace

should not point to the main (content) namespace. Per MediaWiki:Mwe-upwiz-help-desk-url/qqq, this was probably meant to point to commons:Commons:Help Desk, but the namespace is not specified in the message, nor added by the code, which means we have Help Desk redirecting there, which is obviously just a messy patch. (Well, plus the wrong capitalization of commons:Commons:Help desk, but that is just a detail, and this redirect is quite acceptable.)