NetHack's man pages already preponderantly use man(7) `IR` macro for
this purpose. Align outliers.
The "SEE ALSO" section of doc/mn.7 is a partial exception. While the
rest of the document sets cross-referenced man page topics in italics,
this section of the page does not. It seems likely that this decision
was made in deliberate imitation of Seventh Edition Unix manuals (1979)
or their descendants in USG/USL and BSD Unices. That feature of the
Unix man pages, however, was not deliberate per Doug McIlroy, the author
of the man(7) macros and editor of Volume 1 of the Seventh Edition Unix
Programmer's Manual, per his communication on the groff mailing list.
But NetHack has a policy of not modifying Matt Bishop's "mn" macro
file or its man page, so I leave that exception in place.
References:
https://lists.gnu.org/archive/html/groff/2021-08/msg00023.htmlhttps://lists.gnu.org/archive/html/groff/2021-08/msg00040.htmlhttps://github.com/NetHack/NetHack/pull/977#issuecomment-1424996578
G. Branden Robinson
67e724cd75