Adjusted EPOCROOT handling so that in the context of Raptor invocation,
it also updates the environment variable so that other modules (such as
e32variant.pm) can also work without changes.
EXPORTS
Init2 @ 1 NONAME
ChkC2 @ 2 NONAME
BlkI2 @ 3 NONAME
GetGeneration @ 4 NONAME
RBlkI2 @ 5 NONAME
SetCloseLib @ 6 NONAME