Fixed a documentation warning introduced by 3f1c7b7
Fixed #19745 -- Forced resolution of verbose names in createsupersuser

Thanks Baptiste Mispelon for the report and Preston Holmes for the review.
Fixed #9800 -- Allow "isPermaLink" attribute in <guid> element of an RSS item.

Thanks @rtnpro for the patch!
Fixed #19743 - Documented some limitations of contrib.auth.

Thanks Aymeric for the suggestion.
Improved regex in strip_tags

Thanks Pablo Recio for the report. Refs #19237.
Fixed #19704 -- Make use of new ungettext_lazy function at appropriate places