The manpages are generated by processing *.m4 files using m4.
Manpages are written in "roff", which is an ancient text formatting/markup system and language
with a lot of peculiarities. For the Dinit manpages we try to stick to the subset documented here.
Roff formatting guide:
Inline formatting ("escapes"):
\fB - set bold
\fI - set italic (shows as underlined when output on console)
\fR - set regular (i.e. unset bold & italic)
'\ ' - (backslash followed by space) - non-breaking space
\& - zero-width space
\- - non-breaking dash (avoid automatic line-splitting due to hyphen)
\(em - em-dash (GNU groff accepts "\[em]" as well but it may not be portable)
\(en - en-dash
\(bu - bullet point
Line commands ("requests"):
.\" - begins a comment line (may be used for spacing in source document without the effect that having a
.sp - vertical space (i.e. blank line without breaking paragraph); not really necessary since you can get
the same effect with a blank line in the source document.
.in - set or adjust indent (if given an argument). Argument should be "7m" for example (m = em's,
i = inches) i.e. ".in 7m"; "+7m" increases, "-7m" decreases current indent by specified amount.
Without argument is supposed to restore indent from before previous .in, but mandoc gets this wrong
and always just restores initial indent value.
... and macros (which behave like requests). Arguments can be quoted ("...") if they contain