test/statx: Fix reading from uninitialized buffer
test/statx: Fix reading from uninitialized buffer

Fix this:

  ==3062618== Conditional jump or move depends on uninitialised value(s)
  ==3062618==    at 0x484D65E: bcmp (vg_replace_strmem.c:1129)
  ==3062618==    by 0x109304: test_statx (statx.c:71)
  ==3062618==    by 0x109304: main (statx.c:149)

Link: https://github.com/axboe/liburing/issues/640
Reported-by: Vitaly Chikunov <0d216168d6c4f83410e4fa17a56d762f8c0260fc@altlinux.org>
Signed-off-by: Ammar Faizi <a8266392a329a5c7b5ab982a8996391d75b6438e@gnuweeb.org>
Link: d603631fcfbc0d4b17e9d228ccb4cba839347bdb@intel.com
Signed-off-by: Jens Axboe <cd8c6775e60d6f67a6984377324e5290df3d5358@kernel.dk>

axboe/liburing,axboe/liburing,axboe/liburing