Earlier, we freopen()ed stdout in order to write patches to files.
That forced us to duplicate stdout (naming it "realstdout") because we
*still* wanted to be able to report the file names.
As we do not abuse stdout that way anymore, we no longer need to
duplicate stdout, either.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>