Remove negation because -z returns true if variable is unset in this case (http://stackoverflow.com/a/13864829/200603)
Remove negation because -z returns true if variable is unset in this case (http://stackoverflow.com/a/13864829/200603)

berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud