Fixed issue 60 - removed compile warning
Fixed issue 60 - removed compile warning

aerospike/aerospike-client-python,arthurprs/aerospike-client-python,aerospike/aerospike-client-python,trupty/aerospike-client-python,arthurprs/aerospike-client-python,aerospike/aerospike-client-python,trupty/aerospike-client-python,trupty/aerospike-client-python,arthurprs/aerospike-client-python