The test_format function did not indent its in-line test
script in an attempt to make the output of the test look
better. But it does not make a big difference to the output,
and the source looks quite ugly. Let's use our normal
indenting instead.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>