Issue #20978: Remove last part of OS/2 support in distutils
Issue #20978: pyflakes: fix undefined names
(Merge 3.4) Issue #20978: pyflakes: fix undefined names; remove last part of
OS/2 support in distutils
Issue #20976: pyflakes: Remove unused imports
(Merge 3.4) Issue #20976: pyflakes: Remove unused imports
Isuse #12328, #20978: Add _winapi.WAIT_ABANDONED_0 symbol, needed by
multiprocessing.connection
(Merge 3.4) Issue #12328, #20978: Add _winapi.WAIT_ABANDONED_0 symbol, needed
by multiprocessing.connection