[NET] use seq_puts() where appropriate.

Signed-off-by: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>

net/ipv4/igmp.c

@@ -2217,7 +2217,7 @@ static void igmp_mc_seq_stop(struct seq_file *seq, void *v)
 static int igmp_mc_seq_show(struct seq_file *seq, void *v)
 {
 	if (v == SEQ_START_TOKEN)
-		seq_printf(seq, 
+		seq_puts(seq, 
 			 "Idx\tDevice    : Count Querier\tGroup    Users Timer\tReporter\n");
 	else {
 		struct ip_mc_list *im = (struct ip_mc_list *)v;

net/ipv4/proc.c

@@ -256,7 +256,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
 {
 	int i;
 
-	seq_printf(seq, "Ip: Forwarding DefaultTTL");
+	seq_puts(seq, "Ip: Forwarding DefaultTTL");
 
 	for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
 		seq_printf(seq, " %s", snmp4_ipstats_list[i].name);

net/ipv6/ip6_flowlabel.c

@@ -645,7 +645,7 @@ static void ip6fl_fl_seq_show(struct seq_file *seq, struct ip6_flowlabel *fl)
 static int ip6fl_seq_show(struct seq_file *seq, void *v)
 {
 	if (v == SEQ_START_TOKEN)
-		seq_printf(seq, "Label S Owner  Users  Linger Expires  "
+		seq_puts(seq, "Label S Owner  Users  Linger Expires  "
 			      "Dst                              Opt\n");
 	else
 		ip6fl_fl_seq_show(seq, v);

net/ipv6/tcp_ipv6.c

@@ -2017,7 +2017,7 @@ static int tcp6_seq_show(struct seq_file *seq, void *v)
 	struct tcp_iter_state *st;
 
 	if (v == SEQ_START_TOKEN) {
-		seq_printf(seq,
+		seq_puts(seq,
 			 "  sl  "
 			 "local_address                         "
 			 "remote_address                        "