systemctl: Turn off the pager permanently on redhat.

[hoodedvul]

Take into account the main readme for this section. README first.

For permanent adjustments to the pager on systemctl do the following.

Set the the variable in your environment

export SYSTEMD_PAGER=

Set the environment in your sudoers file, or use sudo -E

Defaults        env_keep += "SYSTEMD_PAGER"