Fix unbound variable

Author: bpblanken

v03_pipeline/bin/download_vep_reference_data.bash

@@ -55,7 +55,7 @@ for vep_reference_data_file in ${VEP_REFERENCE_DATA_FILES[@]}; do
         gsutil cat $vep_reference_data_file | tar -xzf - -C $VEP_REFERENCE_DATASETS_DIR/$REFERENCE_GENOME/ &
     else 
         echo "Downloading" $vep_reference_data_file;
-        gsutil cp $vep_reference_data_file $VEP_DATA/$REFERENCE_GENOME/ &
+        gsutil cp $vep_reference_data_file $VEP_REFERENCE_DATASETS_DIR/$REFERENCE_GENOME/ &
     fi
 done;
 wait