lighttpd.service: ExecReload
    
    It is enough to send the -HUP signal to the parent process.  Tested by
    'kill -HUP 3361109' (with server.max-worker = 6):
    
      2021-12-07 17:43:29: (server.c.1827) logfiles cycled UID = 986 PID = 3361109
      2021-12-07 17:43:29: (server.c.1827) logfiles cycled UID = 986 PID = 3361109
      2021-12-07 17:43:30: (server.c.1827) logfiles cycled UID = 986 PID = 3361109
      2021-12-07 17:43:30: (server.c.1827) logfiles cycled UID = 986 PID = 3361109
      2021-12-07 17:43:29: (server.c.1827) logfiles cycled UID = 986 PID = 3361109
      2021-12-07 17:43:30: (server.c.1827) logfiles cycled UID = 986 PID = 3361109
    
    The signal is forwarded to forked processes.