fts.3, div_t.3type: ffix
Break lines containing a parametric prefix to a man page name into two
lines, using distinct font alternation macros and the `\c` escape
sequence to "connect" the output. This prepares for adoption of the
`MR` man(7) macro in groff 1.23.0.
The style seen here assumes that the typeface used for man page names is
bold, which is ahistorical and which the `MR` feature makes
configurable. It might be better to recast this shorthand into English.
Signed-off-by: "G. Branden Robinson" <g.branden.robinson@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>