don't output empty import line if old style enums are used
don't output empty import line if old style enums are used

nsuke/thrift,apache/thrift,apache/thrift,jeking3/thrift,apache/thrift,Jens-G/thrift,apache/thrift,jeking3/thrift,Jens-G/thrift,nsuke/thrift,apache/thrift,apache/thrift,jeking3/thrift,jeking3/thrift,Jens-G/thrift,jeking3/thrift,nsuke/thrift,jeking3/thrift,nsuke/thrift,Jens-G/thrift,apache/thrift,Jens-G/thrift,nsuke/thrift,jeking3/thrift,nsuke/thrift,jeking3/thrift,jeking3/thrift,Jens-G/thrift,jeking3/thrift,apache/thrift,jeking3/thrift,Jens-G/thrift,nsuke/thrift,nsuke/thrift,nsuke/thrift,apache/thrift,jeking3/thrift,nsuke/thrift,apache/thrift,Jens-G/thrift,apache/thrift,Jens-G/thrift,Jens-G/thrift,jeking3/thrift,jeking3/thrift,Jens-G/thrift,nsuke/thrift,nsuke/thrift,Jens-G/thrift,Jens-G/thrift,apache/thrift,nsuke/thrift,apache/thrift,apache/thrift,Jens-G/thrift,apache/thrift,Jens-G/thrift,Jens-G/thrift,jeking3/thrift,Jens-G/thrift,nsuke/thrift,apache/thrift,nsuke/thrift,jeking3/thrift,apache/thrift,nsuke/thrift,apache/thrift,Jens-G/thrift,nsuke/thrift