Change behavior with binary format output to stdout.

Previously, for binary formats, output to stdout was disabled
unless we could detect that the output was being piped (and not
sent to the terminal).  Unfortunately, such detection is not
possible on Windows, leaving windows users no way to pipe binary
output.  So we have changed the behavior in the following way:

* If the -o option is not used, binary output is never sent
  to stdout by default; instead, an error is raised.
* IF '-o -' is used, binary output is sent to stdout, regardless
  of whether it is being piped. This works on Windows too.

0 files changed, 0 insertions, 0 deletions