Replace the macros used in the previous man(1) commit with literal text,
because the macros seem to be specific to groff, and do not render in
mandoc

Approved by:	bcr (mentor)
Sponsored by:	ScaleEngine Inc.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@272174 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f