Consolidate documentation for -H option

Signed-off-by: Ben Firshman <ben@firshman.co.uk>

docker/flags.go

@@ -5,7 +5,6 @@ import (
 	"os"
 	"path/filepath"
 
-	"github.com/docker/docker/api"
 	"github.com/docker/docker/opts"
 	flag "github.com/docker/docker/pkg/mflag"
 )
@@ -40,10 +39,10 @@ func init() {
 	flCa = flag.String([]string{"-tlscacert"}, filepath.Join(dockerCertPath, defaultCaFile), "Trust only remotes providing a certificate signed by the CA given here")
 	flCert = flag.String([]string{"-tlscert"}, filepath.Join(dockerCertPath, defaultCertFile), "Path to TLS certificate file")
 	flKey = flag.String([]string{"-tlskey"}, filepath.Join(dockerCertPath, defaultKeyFile), "Path to TLS key file")
-	opts.HostListVar(&flHosts, []string{"H", "-host"}, "The socket(s) to bind to in daemon mode\nspecified using one or more tcp://host:port, unix:///path/to/socket, fd://* or fd://socketfd.")
+	opts.HostListVar(&flHosts, []string{"H", "-host"}, "The socket(s) to bind to in daemon mode or connect to in client mode, specified using one or more tcp://host:port, unix:///path/to/socket, fd://* or fd://socketfd.")
 
 	flag.Usage = func() {
-		fmt.Fprintf(os.Stderr, "Usage: docker [OPTIONS] COMMAND [arg...]\n -H=[unix://%s]: tcp://host:port to bind/connect to or unix://path/to/socket to use\n\nA self-sufficient runtime for linux containers.\n\nOptions:\n", api.DEFAULTUNIXSOCKET)
+		fmt.Fprint(os.Stderr, "Usage: docker [OPTIONS] COMMAND [arg...]\n\nA self-sufficient runtime for linux containers.\n\nOptions:\n")
 
 		flag.PrintDefaults()