t9700/test.pl: avoid bareword 'STDERR' in 3-argument open()
t9700/test.pl: avoid bareword 'STDERR' in 3-argument open()

Some versions of perl complain when 'STDERR' is used as the third argument
in the 3-argument form of open(). Convert to the 2-argument form which is
described for duping STDERR in my second edition camel book.

Signed-off-by: Brandon Casey <77bc9a9984e6786c5799d7a71768cf023120ef76@nrlssc.navy.mil>
Tested-by: Tom G. Christensen <1c1659c8b732dbc7a2ecc185c98f9f178154b466@statsbiblioteket.dk> on RHEL 3, Perl 5.8.0
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git