*/x is valid syntax for us, but not systemd, so to not confuse users
write it like systemd would accept it
also an timespec must at least have hours and minutes
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
modelled after the PVE one, but we are not 1:1 compatible and need
deleteEmpty support. For now let's just have some duplicate code, but
we should try to move this to widget toolkit ASAP.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>