Update to 2.40.8:

Version 2.40.8
- Bugs fixed from fuzz testing: #744688 - possible double g_free()
  when processing stroke-dasharray
- Optimize rendering of polylines, lines, rectangles, circles, and
  ellipses.  These should be marginally faster, marginally more
  precise, and should put less pressure on the memory allocator.

Version 2.40.7
- Bugs fixed from fuzz testing: #703102, #738050, #738169, #744270, #744299
- Fixed unfiled bug from fuzz testing, where the convolution filter
  had an integer multiplication overflow.
- Fix build of rsvg-convert on Windows.
- Fix a bunch of compiler warnings.

(wiz)