!request: Suppress duplicate entries in list / links.

Signed-off-by: Martin Stone <martin@d7415.co.uk>
(cherry picked from commit 28da3aedcc5e5297638a695d448641ce900abd5b)
!request: list/link: Added count to the query, but left out of result string because I couldn't find a good format.

Signed-off-by: Martin Stone <martin@d7415.co.uk>
(cherry picked from commit 0ec0dc6741675754c2378ab1fe38210103cdceaf)