[tz] [PROPOSED] Internet RFC 8536 has been published

[Paul Eggert]

On 2/13/19 6:18 PM, Guy Harris wrote:
> .UR doesn't seem to do anything with a -man man page on my machine (running macOS High Sierra - 4.4-Lite-flavored, with groff and mdoc); what UN*Xes have man page macros that define it, and do we need to define it ourselves if it's not defined?

.UR is in Fedora, FreeBSD, and OpenBSD (these are all I checked). Maybe 
macOS will catch up some day. In the meantime, the page should format 
well enough even on backwards systems.