Features:
-* make eparis happy: in the getty generator open ttys to run gettys on
- first with O_NDELAY and check isatty() to filter out invalid ttys.
+* logind: avoid suspending on SW_LID if SW_DOCK is set
* MessageQueueMessageSize= and RLimitFSIZE= (and suchlike) should use parse_iec_size().