xdp-trafficgen: fix description of num-packets option

Signed-off-by: Yuya Kusakabe <[email protected]>

Author: higebu

xdp-trafficgen/README.org

@@ -77,7 +77,7 @@ Source UDP port of generated packets. Defaults to 1.
 Enable dynamic port mode where the destination port is varied over a range of
 =<num ports>= starting from the =--dst-port=.
 
-** -n, --num-packets <port>
+** -n, --num-packets <num packets>
 Number of packets to send before exiting. If not supplied, =xdp-trafficgen= will
 keep sending packets until interrupted.
 

xdp-trafficgen/xdp-trafficgen.8

@@ -78,7 +78,7 @@ Source UDP port of generated packets. Defaults to 1.
 .PP
 Enable dynamic port mode where the destination port is varied over a range of
 \fI<num ports>\fP starting from the \fI\-\-dst\-port\fP.
-.SS "-n, --num-packets <port>"
+.SS "-n, --num-packets <num packets>"
 .PP
 Number of packets to send before exiting. If not supplied, \fIxdp\-trafficgen\fP will
 keep sending packets until interrupted.