Usecase

@Omega359 made a nice improvement to lpad in #11987 to make the code cleaner and faster.

This ticket tracks the work to apply the same treatment of #11987 to rpad -- which @Lordworms ported in #11942

          rpad update with utf8view wasn't committed yet. I know it would work anyways but I think now that rpad update is committed it's good to uncomment.

Originally posted by @Omega359 in #11987 (comment)