Use consistent command description

Signed-off-by: Lei Jitang <leijitang@huawei.com>
Upstream-commit: 2b0927c9ac23b66d8a05761801d1c5f882ba8dfb
Component: engine

components/engine/docker/docker.go

@@ -36,7 +36,7 @@ func main() {
 		help := "\nCommands:\n"
 
 		for _, cmd := range dockerCommands {
-			help += fmt.Sprintf("    %-10.10s%s\n", cmd.name, cmd.description)
+			help += fmt.Sprintf("    %-10.10s%s\n", cmd.Name, cmd.Description)
 		}
 
 		help += "\nRun 'docker COMMAND --help' for more information on a command."