[PATCH iproute2 1/2] tc: m_tunnel_key: reformat the usage text

[Jiri Benc <jbenc@redhat.com>]

Adding new tunnel key fields would cause the usage line overflow 80 chars.
Make the usage text similar to other commands.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
---
 tc/m_tunnel_key.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tc/m_tunnel_key.c b/tc/m_tunnel_key.c
index fb418a76bd79..6faf9632058a 100644
--- a/tc/m_tunnel_key.c
+++ b/tc/m_tunnel_key.c
@@ -22,7 +22,13 @@
 static void explain(void)
 {
 	fprintf(stderr, "Usage: tunnel_key unset\n");
-	fprintf(stderr, "       tunnel_key set id TUNNELID src_ip IP dst_ip IP dst_port UDP_PORT\n");
+	fprintf(stderr, "       tunnel_key set <TUNNEL_KEY>\n");
+	fprintf(stderr,
+		"Where TUNNEL_KEY is a combination of:\n"
+		"id <TUNNELID> (mandatory)\n"
+		"src_ip <IP> (mandatory)\n"
+		"dst_ip <IP> (mandatory)\n"
+		"dst_port <UDP_PORT>\n");
 }
 
 static void usage(void)
-- 
1.8.3.1