batman-adv: use seq_puts instead of seq_printf when the format is constant

As reported by checkpatch, seq_puts has to be preferred with
respect to seq_printf when the format is a constant string
(no va_args)

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index 086c107..6b9a544 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -1760,23 +1760,23 @@
 		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
 			seq_printf(seq, "Node:      %pM\n", orig_node->orig);
 
-			seq_printf(seq, " Ingoing:  ");
+			seq_puts(seq, " Ingoing:  ");
 			/* For each in_nc_node to this orig_node */
 			list_for_each_entry_rcu(nc_node,
 						&orig_node->in_coding_list,
 						list)
 				seq_printf(seq, "%pM ",
 					   nc_node->addr);
-			seq_printf(seq, "\n");
+			seq_puts(seq, "\n");
 
-			seq_printf(seq, " Outgoing: ");
+			seq_puts(seq, " Outgoing: ");
 			/* For out_nc_node to this orig_node */
 			list_for_each_entry_rcu(nc_node,
 						&orig_node->out_coding_list,
 						list)
 				seq_printf(seq, "%pM ",
 					   nc_node->addr);
-			seq_printf(seq, "\n\n");
+			seq_puts(seq, "\n\n");
 		}
 		rcu_read_unlock();
 	}