Reverting 'fileutil.py' back to original form due to unexpected problems arising from change 699.  WJH
Reverting 'fileutil.py' back to original form due to unexpected problems arising from change 699.  WJH


git-svn-id: e4aa3cfa51ba591d1cd1dbbaf7e4a2c2b5d7a7ff@705 fe389314-cf27-0410-b35b-8c050e845b92

spacetelescope/stsci.tools