systemd: add meta.longDescription

  meta = with lib; {

    homepage = "https://www.freedesktop.org/wiki/Software/systemd/";

    description = "A system and service manager for Linux";

    longDescription = ''

      systemd is a suite of basic building blocks for a Linux system. It

      provides a system and service manager that runs as PID 1 and starts the

      rest of the system. systemd provides aggressive parallelization

      capabilities, uses socket and D-Bus activation for starting services,

      offers on-demand starting of daemons, keeps track of processes using Linux

      control groups, maintains mount and automount points, and implements an

      elaborate transactional dependency-based service control logic. systemd

      supports SysV and LSB init scripts and works as a replacement for

      sysvinit. Other parts include a logging daemon, utilities to control basic

      system configuration like the hostname, date, locale, maintain a list of

      logged-in users and running containers and virtual machines, system

      accounts, runtime directories and settings, and daemons to manage simple

      network configuration, network time synchronization, log forwarding, and

      name resolution.

    '';

    license = licenses.lgpl21Plus;

    platforms = platforms.linux;

    badPlatforms = [ lib.systems.inspect.platformPatterns.isStatic ];