Apply two small changes to the Windows code, according to SF bug #427345.  These are supposed to support binary data and avoid buffering problems on Windows.
Apply two small changes to the Windows code, according to SF bug
#427345.  These are supposed to support binary data and avoid
buffering problems on Windows.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator