datasource: give dvector and state vector elements memorable names

gstlal/python/datasource.py

@@ -833,8 +833,8 @@ def mkbasicsrc(pipeline, gw_data_source_info, instrument, verbose = False):
 
 		# extract state vector and DQ vector and convert to
 		# booleans
-		statevector = pipeparts.mkstatevector(pipeline, None, required_on = state_vector_on_bits, required_off = state_vector_off_bits)
-		dqvector = pipeparts.mkstatevector(pipeline, None, required_on = dq_vector_on_bits, required_off = dq_vector_off_bits)
+		statevector = pipeparts.mkstatevector(pipeline, None, required_on = state_vector_on_bits, required_off = state_vector_off_bits, name = "%s_state_vector" % instrument)
+		dqvector = pipeparts.mkstatevector(pipeline, None, required_on = dq_vector_on_bits, required_off = dq_vector_off_bits, name = "%s_dq_vector" % instrument)
 		pipeparts.src_deferred_link(src, "%s:%s" % (instrument, gw_data_source_info.state_channel_dict[instrument]), statevector.get_static_pad("sink"))
 		pipeparts.src_deferred_link(src, "%s:%s" % (instrument, gw_data_source_info.dq_channel_dict[instrument]), dqvector.get_static_pad("sink"))
 		@bottle.route("/%s/state_vector_on_off_gap.txt" % instrument)