HashTool: Don't display keytool prompt if no executable
HashTool: Don't display keytool prompt if no executable

marineam/efitools,marineam/efitools,marineam/efitools,msekletar/efitools,msekletar/efitools,msekletar/efitools,mjg59/efitools,msekletar/efitools,marineam/efitools,mjg59/efitools,mjg59/efitools,mjg59/efitools