Features:
-* add test targets to Makefile that runs all our tools with "--help"
- and checks if the output is identical to the output when passed
- through "fold -w 79".
+* network-wait-online should have the ability to ignore interfaces for checking whether we are online, with --ignore-interfaces= or so. Even better: if globbing would be supported.
+
+* network-wait-online should have a configurable timeout, maybe as --timeout-usec=
+
+* The udev blkid built-in should expose a property that reflects
+ whether media was sensed in USB CF/SD card readers. This should then
+ be used to control SYSTEMD_READY=1/0 so that USB card readers aren't
+ picked up by systemd unless they contain a medium. This would mirror
+ the behaviour we already have for CD drives.
+
+* We should remove really old cruft from cdrom_id
* nspawn: emulate /dev/kmsg using CUSE and turn off the syslog syscall
with seccomp. That should provide us with a useful log buffer that