Fix and sync SYNOPSIS and usage().

Prodded by:	bde

sbin/ping/ping.8

@@ -42,11 +42,11 @@
 packets to network hosts
 .Sh SYNOPSIS
 .Nm
-.Op Fl AaDdfMnoQqRrv
+.Op Fl AaDdfnoQqRrv
 .Op Fl c Ar count
 .Op Fl i Ar wait
 .Op Fl l Ar preload
-.Op Fl M Ar mask | time
+.Op Fl M Cm mask | time
 .Op Fl m Ar ttl
 .Op Fl P Ar policy
 .Op Fl p Ar pattern
@@ -54,10 +54,22 @@ packets to network hosts
 .Op Fl s Ar packetsize
 .Op Fl t Ar timeout
 .Op Fl z Ar tos
-.Ar host |
+.Ar host
-.Op Fl L
+.Nm
-.Op Fl I Ar interface
+.Op Fl AaDdfLnoQqRrv
+.Op Fl c Ar count
+.Op Fl I Ar iface
+.Op Fl i Ar wait
+.Op Fl l Ar preload
+.Op Fl M Cm mask | time
+.Op Fl m Ar ttl
+.Op Fl P Ar policy
+.Op Fl p Ar pattern
+.Op Fl S Ar src_addr
+.Op Fl s Ar packetsize
 .Op Fl T Ar ttl
+.Op Fl t Ar timeout
+.Op Fl z Ar tos
 .Ar mcast-group
 .Sh DESCRIPTION
 The
@@ -130,7 +142,7 @@ Only the super-user may use this option.
 .Bf -emphasis
 This can be very hard on a network and should be used with caution.
 .Ef
-.It Fl I Ar interface
+.It Fl I Ar iface
 Source multicast packets with the given interface address.
 This flag only applies if the ping destination is a multicast address.
 .It Fl i Ar wait
@@ -155,14 +167,22 @@ is specified,
 sends that many packets as fast as possible before falling into its normal
 mode of behavior.
 Only the super-user may use this option.
-.It Fl M Ar mask | time
+.It Fl M Cm mask | time
-Use ICMP_MASKREQ or ICMP_TSTAMP instead of ICMP_ECHO.  For
+Use
-.Ar mask ,
+.Dv ICMP_MASKREQ
-print the netmask of the remote machine.  Set the
+or
-.Va net.inet.icmp.maskrepl
+.Dv ICMP_TSTAMP
-MIB variable to enable ICMP_MASKREPLY.
+instead of
+.Dv ICMP_ECHO .
 For
-.Ar time ,
+.Cm mask ,
+print the netmask of the remote machine.
+Set the
+.Va net.inet.icmp.maskrepl
+MIB variable to enable
+.Dv ICMP_MASKREPLY .
+For
+.Cm time ,
 print the origination, reception and transmission timestamps.
 .It Fl m Ar ttl
 Set the IP Time To Live for outgoing packets.

sbin/ping/ping.c

@@ -1579,25 +1579,25 @@ fill(bp, patp)
 static void
 usage()
 {
-	(void)fprintf(stderr,
+	(void)fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n",
-#ifdef IPSEC
-#ifdef IPSEC_POLICY_IPSEC
-"%s\n%s\n%s%s\n%s\n",
-#else
-"%s\n%s\n%s\n%s\n",
-#endif
-#else
-"%s\n%s\n%s\n%s\n",
-#endif
 
-"usage: ping [-AaDdfnoQqRrv] [-c count] [-i wait] [-l preload]",
+"usage: ping [-AaDdfnoQqRrv] [-c count] [-i wait] [-l preload] [-M mask | time]",
-"            [-M mask | time] [-m ttl] [-p pattern] [-S src_addr]",
+"            [-m ttl]"
-"            [-s packetsize] [-t timeout] [-z tos]",
 #ifdef IPSEC
 #ifdef IPSEC_POLICY_IPSEC
-" [-P policy]",
+" [-P policy]"
 #endif
 #endif
-"            [host | [-L] [-I iface] [-T ttl] mcast-group]");
+" [-p pattern] [-S src_addr] [-s packetsize]",
+"            [-t timeout] [-z tos] host",
+"       ping [-AaDdfLnoQqRrv] [-c count] [-I iface] [-i wait] [-l preload]",
+"            [-M mask | time] [-m ttl]"
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+" [-P policy]"
+#endif
+#endif
+" [-p pattern] [-S src_addr]",
+"            [-s packetsize] [-T ttl] [-t timeout] [-z tos] mcast-group");
 	exit(EX_USAGE);
 }