Failure in VclTextTest::testSimpleText due to a slightly oversized delta

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A new contributor gets this on Ubuntu 22.04:

[_RUN_____] VclTextTest::testSimpleText
/home/user/LibreOffice/core/vcl/qa/cppunit/text.cxx:230:VclTextTest::testSimpleText
double equality assertion failed
- Expected: 42
- Actual  : 37
- Delta   : 4

No display scaling is in use.

The block leading up to 230 is:

font = vcl::Font("DejaVu Sans", "Book", Size(0, 72));
device->Erase();
device->SetFont(font);
device->DrawText(Point(10, 10), text);
exportDevice("simple-text-72.png", device);
// Font size is doubled, so pixel sizes should also roughly double.
tools::Long height72 = getCharacterLeftSideHeight(device, Point(0, 30));
CPPUNIT_ASSERT_DOUBLES_EQUAL(height36 * 2, height72, 4);
tools::Long width72 = getCharacterBaseWidth(device, Point(20, 99));
CPPUNIT_ASSERT_DOUBLES_EQUAL(width36 * 2, width72, 4);

Test was added in ae38f1dff768e3582464f34ec4cd89b8133e8423

Should we bump the delta and be happy?

Ilmari



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