BF: feedsRun was unsetting SGE_ROOT causing new fsl_sub to fail

fsl_course/fdt/bedpostx_gpu/feedsRun

 #!/bin/bash
 
-# This test needs to be executed
-# on a CUDA-capable machine
+# This test will attempt to submit to a cuda-capable queue via fsl_sub
 
 set -e
 
-unset SGE_ROOT
-
 outdir=$1
 datadir=$2