Added fort.6 and fort.97 to excluded files in closeUnits as well.
Added fort.6 and fort.97 to excluded files in closeUnits as well.

SixTrack/SixTrack,SixTrack/SixTrack,SixTrack/SixTrack,SixTrack/SixTrack,SixTrack/SixTrack,SixTrack/SixTrack