Error doesn't display when loading custom certs for registry token

[zebox]

When user try use own certificates and try loading they for registry token, loadCerts can throw an error, but it doesn't shows. If error exist registry-admin try creates new certs. The createCerts throw an error to because user certs already exist in destination folder.

// in registry/token.go package

if err = rt.loadCerts(); err != nil {
		err = rt.createCerts()
		if err != nil {
			return nil, err
		}
	}

Need handle loadCerts errors before call createCerts.

[zebox]

Fixed.