libgit2/libgit2 — pull request #2618 by csware (2014-10-12 15:26:22+00:00)
Title: There is no "z" size specifier on MSVC

See http://msdn.microsoft.com/en-us/library/tcxf1dw6.aspx and https://stackoverflow.com/questions/6655410/why-doesnt-zd-printf-format-work-in-vs2010