manpage: add option -l

The option -l (--logger) sends dvblasts output to syslog daemon instead of to stderr.

dvblast.1

-.TH DVBLAST "1" "January 2010" "DVBlast 1.1" "User Commands"
+.TH DVBLAST "1" "January 2010" "DVBlast 1.3" "User Commands"
 .SH NAME
 DVBlast \- Simple and powerful dvb streaming application
 .SH SYNOPSIS
 .B dvblast
-[\fI-q\fR] \fI-c <config_file>\fR [\fI-r <remote_socket>\fR] [\fI-t <ttl>\fR] [\fI-o <SSRC_IP>\fR] [\fI-i <RT_priority>\fR] [\fI-a <adapter>\fR] [\fI-n <frontend number>\fR] [\fI-S <diseqc>\fR] \fI-f <frequency>\fR [\fI-F <fec inner>\fR] [\fI-R <rolloff>\fR] ] [\fI-s <symbol_rate>\fR] [\fI-v <0|13|18>\fR] [\fI-p\fR] [\fI-b <bandwidth>\fR] [\fI-m <modulation\fR] [\fI-u\fR] [\fI-W\fR] [\fI-U\fR] [\fI-d <dest_IP:port>\fR] [\fI-e\fR] [\fI-T\fR]
+[\fI-q\fR] \fI-c <config_file>\fR [\fI-r <remote_socket>\fR] [\fI-t <ttl>\fR] [\fI-o <SSRC_IP>\fR] [\fI-i <RT_priority>\fR] [\fI-a <adapter>\fR] [\fI-n <frontend number>\fR] [\fI-S <diseqc>\fR] \fI-f <frequency>\fR [\fI-F <fec inner>\fR] [\fI-R <rolloff>\fR] ] [\fI-s <symbol_rate>\fR] [\fI-v <0|13|18>\fR] [\fI-p\fR] [\fI-b <bandwidth>\fR] [\fI-m <modulation\fR] [\fI-u\fR] [\fI-W\fR] [\fI-U\fR] [\fI-d <dest_IP:port>\fR] [\fI-e\fR] [\fI-T\fR] [\fI-l\fR]
 .SH DESCRIPTION
 DVBlast is a simple and powerful streaming application based on the linux-dvb API.
 It opens a DVB device, tunes it, places PID filters, configures a CAM module, and demultiplexes the packets to several RTP outputs.
@@ -46,6 +46,9 @@ DVB-S2 0|12|23|34|35|56|78|89|910|999 (default auto: 999)
 \fB\-h\fR, \fB\-\-help\fR
 Print the help message
 .TP
+\fB\-l\fR, \fB\-\-logger\fR
+Send messages to syslog instead of stderr
+.TP
 \fB\-i\fR, \fB\-\-priority\fR <RT priority>
 Real time priority
 .TP