localhost jmax1632 # etcat -u docbook-sgml-utils
[ Colour Code : set unset ]
[ Legend   : (U) Col 1 - Current USE flags        ]
[          : (I) Col 2 - Installed With USE flags ]
Traceback (most recent call last):
  File "/usr/bin/etcat", line 677, in ?
    main()
  File "/usr/bin/etcat", line 673, in main
    function(query, matches)
  File "/usr/bin/etcat", line 364, in uses
    used = p.get_use_vars().split()
AttributeError: Package instance has no attribute 'get_use_vars'