Fixed a bug that caused a change in getkey's output (caused by #1312)....

Fixed a bug that caused a change in getkey's output (caused by #1312). getkey's output should now be consistent with how it was in the last production. Fixes #1360.

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/trunk@4933 41f8697f-d340-4b68-9986-7bafba869bb8