This is in preparation for the following commit.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Cherry-picked-from: 3307a8f4f0 ("tests/unit/test_xasprintf.c: Cosmetic")
Cc: Serge Hallyn <serge@hallyn.com>
Cc: Chris Hofstaedtler <zeha@debian.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>