Use local definitions of .EX/.EE or .DS/.DE to avoid low-level troff
requests in the page body. There are plans to add these to groff man;
in the interim, this patch adds a compatible definition.
From: Eric S. Raymond <esr@thyrsus.com>
This patch converts hyphens to minus signs in the man pages (for options,
emails, or command line examples).
This patch also closes one font modifier in iecset.1.
(s/\fIfalse\fI,/\fIfalse\fP,/)
Signed-off-by: Nicolas FRANCOIS <nicolas.francois@centraliens.net>