Removed experimental from cluster commands (#4034)

pkg/cli/cmds/server.go

@@ -383,31 +383,31 @@ func NewServerCommand(action func(*cli.Context) error) cli.Command {
 			},
 			cli.StringFlag{
 				Name:        "agent-token",
-				Usage:       "(experimental/cluster) Shared secret used to join agents to the cluster, but not servers",
+				Usage:       "(cluster) Shared secret used to join agents to the cluster, but not servers",
 				Destination: &ServerConfig.AgentToken,
 				EnvVar:      version.ProgramUpper + "_AGENT_TOKEN",
 			},
 			cli.StringFlag{
 				Name:        "agent-token-file",
-				Usage:       "(experimental/cluster) File containing the agent secret",
+				Usage:       "(cluster) File containing the agent secret",
 				Destination: &ServerConfig.AgentTokenFile,
 				EnvVar:      version.ProgramUpper + "_AGENT_TOKEN_FILE",
 			},
 			cli.StringFlag{
 				Name:        "server,s",
-				Usage:       "(experimental/cluster) Server to connect to, used to join a cluster",
+				Usage:       "(cluster) Server to connect to, used to join a cluster",
 				EnvVar:      version.ProgramUpper + "_URL",
 				Destination: &ServerConfig.ServerURL,
 			},
 			cli.BoolFlag{
 				Name:        "cluster-init",
-				Usage:       "(experimental/cluster) Initialize a new cluster using embedded Etcd",
+				Usage:       "(cluster) Initialize a new cluster using embedded Etcd",
 				EnvVar:      version.ProgramUpper + "_CLUSTER_INIT",
 				Destination: &ServerConfig.ClusterInit,
 			},
 			cli.BoolFlag{
 				Name:        "cluster-reset",
-				Usage:       "(experimental/cluster) Forget all peers and become sole member of a new cluster",
+				Usage:       "(cluster) Forget all peers and become sole member of a new cluster",
 				EnvVar:      version.ProgramUpper + "_CLUSTER_RESET",
 				Destination: &ServerConfig.ClusterReset,
 			},