net: failed not faild

Change-Id: Iea4221186325783db2029b07af1409015ddeda99
Reviewed-on: https://go-review.googlesource.com/3695Reviewed-by: Dave Cheney <dave@cheney.net>

src/net/server_test.go

@@ -441,7 +441,7 @@ func runDatagramPacketConnClient(t *testing.T, net, laddr, taddr string, isEmpty
 	}
 	c, err := ListenPacket(net, laddr)
 	if err != nil {
-		t.Fatalf("ListenPacket(%q, %q) faild: %v", net, laddr, err)
+		t.Fatalf("ListenPacket(%q, %q) failed: %v", net, laddr, err)
 	}
 	defer c.Close()
 	c.SetReadDeadline(time.Now().Add(1 * time.Second))