_PyLong_AsByteArray:  simplify the logic for dealing with the most- significant digits sign bits.  Again no change in semantics.
_PyLong_AsByteArray:  simplify the logic for dealing with the most-
significant digits sign bits.  Again no change in semantics.

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