chore: add another TODO (in two parts)

internal/cli/gitmirror.go

@@ -26,11 +26,15 @@ type cfg struct {
 
 // Gitmirror runs a subcommand and returns success or failure to the shell.
 func Gitmirror(args []string) int {
+	// TODO: parse(args) should return an app ready to go rather than a cfg
+	// to feed to newAppEnv.
 	cfg, err := parse(args)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "%s: %s\n", cmd, err)
 		return exitFailure
 	}
+	// TODO: if I get this far, then I can finalize the appEnv by setting
+	// up a home dir. Or should I do that as part of parse?
 
 	app := newAppEnv(cfg)
 	switch app.subCmd {