TODO

   1  - move /lib/udev/devices/ to tmpfiles
   2
   3  - trigger --subsystem-match=usb/usb_device
   4
   5  - test (now fixed) /dev/tape/ links
   6
   7  - kill rules_generator
   8
   9  - kill tabs?
  10
  11  - have a $attrs{} ?
  12
  13  - deprecate and warn about RUN+="socket:"
  14
  15  - libudev.so.1
  16      - symbol versioning
  17      - return object with *_unref()
  18      - udev_monitor_from_socket()
  19      - udev_queue_get_failed_list_entry()