libgit2/libgit2 — pull request #1622 by yorah (2013-05-30 09:45:53+00:00)
Title: thread: fix segfault on Windows 64 bits

`lpExitCode` is a pointer to a long. A long is 32 bits wide on Windows.

It means that on Windows 64bits, `GetExitCodeThread()` doesn't set/clear the high-order bytes of the 64 bits memory space pointed at by `value_ptr`.