{
    # Change defaults => usrquota,grpquota for / file system
    @lines = map {
	/\s\/\s+ext[234]\s+defaults\s/ && s/defaults/usrquota,grpquota/;
	/^\/dev\/main\/.*\s+ext[234]\s+defaults\s/ && s/defaults/usrquota,grpquota/;
        /\s\/\s+xfs\s+defaults\s/ && s/defaults/uquota,gquota/;
        /^\/dev\/main\/.*\s+xfs\s+defaults\s/ && s/defaults/uquota,gquota/;
	$_
	} @lines;
    "";
}
