Silence warning over ignored return value (CID 187932)

- We deliberately ignore the return value.

Change-Id: If467911b019e7336cf9dc6d4c95c2cd53a5af33f
Signed-off-by: Chris Luke <chrisy@flirble.org>
diff --git a/src/vlib/unix/cli.c b/src/vlib/unix/cli.c
index 42c1374..2fe33cc 100644
--- a/src/vlib/unix/cli.c
+++ b/src/vlib/unix/cli.c
@@ -2772,8 +2772,8 @@
 
   /* Disable Nagle, ignore any errors doing so eg on PF_LOCAL socket */
   one = 1;
-  setsockopt (client.fd, IPPROTO_TCP, TCP_NODELAY,
-	      (void *) &one, sizeof (one));
+  (void) setsockopt (client.fd, IPPROTO_TCP, TCP_NODELAY,
+		     (void *) &one, sizeof (one));
 
   client_name = (char *) format (0, "%U%c", format_sockaddr, &client.peer, 0);