Esme Povirk (@madewokherd) commented about dlls/gdiplus/graphics.c:
{ height += size.cy; lineno++;
sum += fit + (lret < fitcpy ? 1 : 0);
sum += fit; } else { height += size.cy; lineno++;
sum += fit + (lret < fitcpy ? 2 : 0);
sum += fit; }
Both parts of this if statement are the same now, and it's the only use of the unixstyle_newline variable.