Avoid closed stream exceptions by not sharing file handles with EXIFR
Avoid closed stream exceptions by not sharing file handles with EXIFR

Closed stream errors started appearing sporadically with Rack and WebRat.
It appears that EXIFR is closing the tempfile and provoking an unlinking
of it as well.  In any case, EXIFR is dorking around with the eigenclass
of the tempfile so we might as well be safe and stop sharing.

ishwinder/enbake_attach,cch1/attach,ishwinder/enbake_attach,cch1/attach