tcpudp: simplify help text

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/networking/tcpudp.c b/networking/tcpudp.c
index a2b8c95..3df6a98 100644
--- a/networking/tcpudp.c
+++ b/networking/tcpudp.c
@@ -36,14 +36,14 @@
 //usage:#define tcpsvd_full_usage "\n\n"
 //usage:       "Create TCP socket, bind to IP:PORT and listen\n"
 //usage:       "for incoming connection. Run PROG for each connection.\n"
-//usage:     "\n	IP		IP to listen on. '0' = all"
+//usage:     "\n	IP		IP to listen on, 0 = all"
 //usage:     "\n	PORT		Port to listen on"
 //usage:     "\n	PROG ARGS	Program to run"
 //usage:     "\n	-l NAME		Local hostname (else looks up local hostname in DNS)"
 //usage:     "\n	-u USER[:GRP]	Change to user/group after bind"
 //usage:     "\n	-c N		Handle up to N connections simultaneously"
 //usage:     "\n	-b N		Allow a backlog of approximately N TCP SYNs"
-//usage:     "\n	-C N[:MSG]	Allow only up to N connections from the same IP."
+//usage:     "\n	-C N[:MSG]	Allow only up to N connections from the same IP"
 //usage:     "\n			New connections from this IP address are closed"
 //usage:     "\n			immediately. MSG is written to the peer before close"
 //usage:     "\n	-h		Look up peer's hostname"
@@ -56,7 +56,7 @@
 //usage:       "Create UDP socket, bind to IP:PORT and wait\n"
 //usage:       "for incoming packets. Run PROG for each packet,\n"
 //usage:       "redirecting all further packets with same peer ip:port to it.\n"
-//usage:     "\n	IP		IP to listen on. '0' = all"
+//usage:     "\n	IP		IP to listen on, 0 = all"
 //usage:     "\n	PORT		Port to listen on"
 //usage:     "\n	PROG ARGS	Program to run"
 //usage:     "\n	-l NAME		Local hostname (else looks up local hostname in DNS)"