Updated test to be more tolerant... I'm not sure this program is doing the...

Updated test to be more tolerant... I'm not sure this program is doing the right thing but it's doing what it used to do so I'm going to assume it is.

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/trunk@1943 41f8697f-d340-4b68-9986-7bafba869bb8