libgit2/libgit2 — pull request #1654 by yorah (2013-06-17 13:34:01+00:00)
Title: Memzero stuffs

Proposal to improve `git__memzero`:
- fix a warning related to `volatile`
- deploy `SecureZeroMemory` usage on Windows
- inline the call to avoid leaving an entry point to it
- actually use `git__memzero()` when zeroing memory holding a password (not sure I got all the cases there, I tried looking for keywords like password, passphrase, ...)