Bug#675898: The usage message should go to STDERR not STDOUT

[積丹尼 Dan Jacobson]

>>>>> "JAK" == Julian Andres Klode <j...@debian.org> writes:

JAK> It seems like you reported that bug on the wrong package,
JAK> I'm reassigning it.

Waaa... Thanks! Hmmm. Also shows average time for apt bugs to be looked
at is three years!