net: Add \n before warning message so it prints on a new line.

Signed-off-by: Philip Balister <philip@opensdr.com>
diff --git a/net/eth.c b/net/eth.c
index 02baa37..1c0c780 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -302,7 +302,7 @@
 				puts("\nWarning: eth device name has a space!\n");
 
 			if (eth_write_hwaddr(dev, "eth", eth_number))
-				puts("Warning: failed to set MAC address\n");
+				puts("\nWarning: failed to set MAC address\n");
 
 			eth_number++;
 			dev = dev->next;