fix clean command
fix clean command

morozov/phpbrew,zonuexe/phpbrew,williamn/phpbrew,williamn/phpbrew,zonuexe/phpbrew,phpbrew/phpbrew,morozov/phpbrew,zonuexe/phpbrew,phpbrew/phpbrew,williamn/phpbrew,williamn/phpbrew,zonuexe/phpbrew,phpbrew/phpbrew