Fixed blurb for Provider property's param-spec
Fixed blurb for Provider property's param-spec

https://bugs.freedesktop.org/show_bug.cgi?id=60024

freedesktop-unofficial-mirror/realmd__realmd,freedesktop-unofficial-mirror/realmd__realmd,freedesktop-unofficial-mirror/realmd__realmd,freedesktop-unofficial-mirror/realmd__realmd