tst_q23_expected: fix GCC -Wformat-zero-lengthHEADdev

GCC warns if a format string is statically known to be empty. Since we
mark up printf-style QTest::addRow() using the resp. attribute, GCC
warns here, too:

  tst_q23_expected.cpp:23:19: warning: zero-length gnu_printf format string [-Wformat-zero-length]
     23 |     QTest::addRow("") << false;
        |                   ^~

Instead of using the old newRow(), add some content to the data tag
instead.

It cannot be left unmentioned that this test doesn't test ... very
much. I hope we don't use this component in production code, yet...

Amends 4e9f4d5d02e29b4522540b8f9b9b01b7e57a6b54.

Pick-to: 6.10
Change-Id: I50ebb074997e034506c6602ff7602ad392b745be
Reviewed-by: Thiago Macieira <[email protected]>
Reviewed-by: Tim Blechmann <[email protected]>

0 files changed, 0 insertions, 0 deletions