D-Programming-Language/phobos — pull request #2069 by 9rnsr (2014-04-03 11:51:08+00:00)
Title: Issue 11778 - format for null does not verify fmt flags.

https://d.puremagic.com/issues/show_bug.cgi?id=11778

Support `%d` and `%o` for pointer type formatting.