In roff, lines beginning with a single quote are control lines. In the libxt_DNETMAP man-page there is a single-quoted string at the beginning of a line, which troff tries and fails to interpret as a macro: troff: <standard input>:49: warning: macro 'S'' not defined This means that the line is not output. Replace the single quotes with the appropriate escape-sequences. Fixes: 2b38d081a50b ("doc: spelling and grammar corrections to DNETMAP") Signed-off-by: Jeremy Sowden <jeremy@xxxxxxxxxx> --- extensions/libxt_DNETMAP.man | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/extensions/libxt_DNETMAP.man b/extensions/libxt_DNETMAP.man index 7a8fe404435b..a59b6551fcbe 100644 --- a/extensions/libxt_DNETMAP.man +++ b/extensions/libxt_DNETMAP.man @@ -46,7 +46,7 @@ Contains the binding table for the given \fIsubnet/mask\fP. Each line contains \fBprenat address\fR, \fBpostnat address\fR, \fBttl\fR (seconds until the entry times out), \fBlasthit\fR (last hit to the entry in seconds relative to system boot time). Please note that the \fBttl\fR and \fBlasthit\fR entries contain an -'\fBS\fR' in case of a static binding. +\(oq\fBS\fR\(cq in case of a static binding. .TP \fB/proc/net/xt_DNETMAP/\fR\fIsubnet\fR\fB_\fR\fImask\fR\fB_stat\fR Contains statistics for a given \fIsubnet/mask\fP. The line contains four -- 2.27.0