Consolidate subcommand registration

cmd/help.go

@@ -1,23 +1,10 @@
 package lumecmd
 
 import (
-	"flag"
 	"fmt"
+	"sort"
 )
 
-func init() {
-	RegisterCommand("help", Command{
-		Func: HelpCmd,
-		Flags: func() *flag.FlagSet {
-			fs := flag.NewFlagSet("help", flag.ExitOnError)
-
-			return fs
-		}(),
-		Use:   "<command>",
-		Short: "Show help for a command",
-	})
-}
-
 func HelpCmd(args CmdArgs) (int, error) {
 	argv := args.Flags.Args()
 
@@ -47,7 +34,7 @@ func printHelp(commands map[string]Command) {
 	fmt.Println("\ncommands:")
 
 	sort.Strings(keys)
-	for _, k = range keys {
+	for _, k := range keys {
 		c := commands[k]
 		fmt.Printf("  %-*s    %s\n", maxLen, c.Name, c.Short)
 	}