Added: 'CMD_SYSCTL` and 'SYSCTL_CONF_DIR` parameters for sysctl(8)

    Quote from i-MSCP Github (1.4.x)
    Code
    1. Added: 'CMD_SYSCTL` and 'SYSCTL_CONF_DIR` parameters for sysctl(8)
    2. Added: iMSCP::Provider::Service::Interface
    3. Added: Routine to setup kernel
    4. Fixed: Avoid usage of Scalar::Defer whenever possible
    5. Fixed: iMSCP::Service must implements iMSCP::Provider::Service::Interface
    6. Fixed: iMSCP::Provider::Service::Sysvinit must implements iMSCP::Provider::Service::Interface
    7. Removed: Support for systemd older than 204-3 (iMSCP::Provider::Service::Debian::Systemd)
    8. Removed: Support for sysv-rc older than 2.88 (iMSCP::Provider::Service::Debian::Sysvinit)
    9. Updated license headers

    Source: https://github.com/i-MSCP/imsc…505b208eecb9f8e2c6a2bd664