Consolidate the files in client/

Signed-off-by: Daniel Nephin <dnephin@docker.com>

usage.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"sort"
+
+	"github.com/docker/docker/cli"
+)
+
+type byName []cli.Command
+
+func (a byName) Len() int           { return len(a) }
+func (a byName) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
+func (a byName) Less(i, j int) bool { return a[i].Name < a[j].Name }
+
+// TODO(tiborvass): do not show 'daemon' on client-only binaries
+
+func sortCommands(commands []cli.Command) []cli.Command {
+	dockerCommands := make([]cli.Command, len(commands))
+	copy(dockerCommands, commands)
+	sort.Sort(byName(dockerCommands))
+	return dockerCommands
+}