sync to OpenBSD: .ft is a roff(7) request, not a man(7) macro,

and it is not even used frequently in man(7)

1 files changed, 28 insertions, 0 deletions

diff --git a/roff.7 b/roff.7
index 9722f1e9..d557a2e8 100644
--- a/roff.7
+++ b/roff.7
@@ -659,6 +659,34 @@ This line-scoped request is intended to have one argument specifying
 the font family to be selected.
 It is a groff extension, and currently, it is ignored including its
 arguments, and the number of arguments is not checked.
+.Ss \&ft
+Change the font.
+Its syntax is as follows:
+.Pp
+.D1 Pf . Cm \&ft Op Ar font
+.Pp
+The following
+.Ar font
+arguments are supported:
+.Bl -tag -width 4n -offset indent
+.It Cm B , BI , 3 , 4
+switches to
+.Sy bold
+font
+.It Cm I , 2
+switches to
+.Em underlined
+font
+.It Cm R , CW , 1
+switches to normal font
+.It Cm P No "or no argument"
+switches back to the previous font
+.El
+.Pp
+This request takes effect only locally, may be overridden by macros
+and escape sequences, and is only supported in
+.Xr man 7
+for now.
 .Ss \&hw
 Specify hyphenation points in words.
 This line-scoped request is currently ignored.