3499fde ipatests: check that the output of sudo -V is not displayed

Authored and Committed by frenaud 2 years ago
    ipatests: check that the output of sudo -V is not displayed
    
    During client installation, the installer calls sudo -V
    to check if sudo command is installed. The output must not
    be displayed in stdout.
    
    Related: https://pagure.io/freeipa/issue/8767
    Reviewed-By: Rob Crittenden <rcritten@redhat.com>