OS/2 EMX port changes (Objects part of patch #450267):

Objects/
    fileobject.c
    stringobject.c
    unicodeobject.c

This commit doesn't include the cleanup patches for stringobject.c and
unicodeobject.c which are shown separately in the patch manager.  Those
patches will be regenerated and applied in a subsequent commit, so as
to preserve a fallback position (this commit to those files).