Log Message:
p5-GraphViz: update to 2.24.

2.24  2016-12-27T10:58:00
	- Test with Test::More V 1.001002 rather than V 1.302019, and all tests still pass.
		See RT#115236. Thanx to Kent Fredric for again (sorry!) prompting me over this.
		Lowering the version of Test::More in Makefile.PL is the only change in this \ 
version.

2.23  2016-12-21T08:00:00
	- Add no_xxe to XML::Twig instantiation. See RT#118972. Many thanx to Lisa Hare \ 
for a
		very well-crafted set of patches provided via github.