nfsd: Use seq_putc() in two functions

A single character (line break) should be put into a sequence.
Thus use the corresponding function "seq_putc()".

Signed-off-by: Xu Wang <[e-mail]>
Signed-off-by: Chuck Lever <[e-mail]>

fs/nfsd/nfs4idmap.c

···
 			ent->id);
 	if (test_bit(CACHE_VALID, &h->flags))
 		seq_printf(m, " %s", ent->name);
-	seq_printf(m, "\n");
+	seq_putc(m, '\n');
 	return 0;
 }
 
···
 			ent->name);
 	if (test_bit(CACHE_VALID, &h->flags))
 		seq_printf(m, " %u", ent->id);
-	seq_printf(m, "\n");
+	seq_putc(m, '\n');
 	return 0;
 }