fix etcd lock ttl refresh value in seconds

Signed-off-by: Alexandre Beslic <abronan@docker.com>

Godeps/Godeps.json

@@ -47,7 +47,7 @@
 		},
 		{
 			"ImportPath": "github.com/docker/libkv",
-			"Rev": "1d2361d74ecd9aa75b17992cf5c63d2c5ab717ab"
+			"Rev": "975dbc9a3dc76a4b3ed1f60f73b9c0323b40336c"
 		},
 		{
 			"ImportPath": "github.com/gogo/protobuf/proto",

Godeps/_workspace/src/github.com/docker/libkv/store/consul/consul.go

@@ -88,7 +88,7 @@ func (s *Consul) setTLS(tls *tls.Config) {
 	s.config.Scheme = "https"
 }
 
-// SetTimeout sets the timout for connecting to Consul
+// SetTimeout sets the timeout for connecting to Consul
 func (s *Consul) setTimeout(time time.Duration) {
 	s.config.WaitTime = time
 }

Godeps/_workspace/src/github.com/docker/libkv/store/etcd/etcd.go

@@ -495,7 +495,7 @@ func (l *etcdLock) Lock(stopChan chan struct{}) (<-chan struct{}, error) {
 func (l *etcdLock) holdLock(key string, lockHeld chan struct{}, stopLocking <-chan struct{}) {
 	defer close(lockHeld)
 
-	update := time.NewTicker(time.Duration((l.ttl / 3) + 1))
+	update := time.NewTicker(time.Duration(l.ttl) * time.Second / 3)
 	defer update.Stop()
 
 	var err error