Also skip test if mcrypt is not available.
Also skip test if mcrypt is not available.

Sean-Der/igbinary,ZeusbaseWeb/igbinary,ZeusbaseWeb/igbinary,nimishzynga/php-igbinary,ZeusbaseWeb/igbinary,igbinary/igbinary7,phadej/igbinary,igbinary/igbinary7,igbinary/igbinary7,yiliaofan/igbinary,Jan-E/igbinary,Sean-Der/igbinary,phadej/igbinary,nimishzynga/php-igbinary,igbinary/igbinary7,igbinary/igbinary7,Jan-E/igbinary,derickr/igbinary,nimishzynga/php-igbinary,Jan-E/igbinary,Jan-E/igbinary,yiliaofan/igbinary,derickr/igbinary,phadej/igbinary,nimishzynga/php-igbinary,yiliaofan/igbinary,Jan-E/igbinary,Sean-Der/igbinary,derickr/igbinary