Without -Q, oggenc output is very voluminous, including many hidden lines
(i.e. lines anding with CR and no LF).  With -Q, there's no output at all,
not even a list of input files processed.  There seems to be nothing in
between, which is a shame, especially if I want to use oggenc as part of
a larger program/script and to send the output to a file, not to a tty.