-overlay test overlay
-pvfs2 test PVFS2
-tmpfs test TMPFS
+ -ubifs test ubifs
-l line mode diff
-udiff show unified diff (default)
-n show me, do not run tests
-overlay) FSTYP=overlay; export OVERLAY=true ;;
-pvfs2) FSTYP=pvfs2 ;;
-tmpfs) FSTYP=tmpfs ;;
+ -ubifs) FSTYP=ubifs ;;
-g) group=$2 ; shift ;
GROUP_LIST="$GROUP_LIST ${group//,/ }"