use a list to enumerate options

usr.sbin/rwhod/rwhod.8

@@ -73,33 +73,26 @@ servers' status messages, validating them, then recording
 them in a collection of files located in the directory
 .Pa /var/rwho .
 .Pp
-The
-.Fl i
-option enables insecure mode, which causes
+The following options are available:
+.Bl -tag -width indent
+.It Fl i
+Enable insecure mode, which causes
 .Nm
 to ignore the source port on incoming packets.
-.Pp
-The
-.Fl p
-option tells
-.Nm
-to ignore all
+.It Fl p
+Ignore all
 .Dv POINTOPOINT
 interfaces.  This is useful if you do not wish to keep dial on demand
 interfaces permanently active.
-.Pp
-The
-.Fl l
-option enables listen mode, which causes
+.It Fl l
+Enable listen mode, which causes
 .Nm
 to not broadcast any information.
 This allows you to monitor other machines'
 .Nm
 information, without broadcasting your own.
-.Pp
-The
-.Fl m
-option causes
+.It Fl m Op Ar ttl
+Cause
 .Nm
 to use IP multicast (instead of
 broadcast) on all interfaces that have
@@ -149,6 +142,7 @@ but, if multicasting is used,
 those old
 .Nm Ns s
 won't hear the reports generated by this program.
+.El
 .Pp
 The server transmits and receives messages at the port indicated
 in the ``who'' service specification; see