fix formatting in test_gas_state

Author: jcurtis2

tests/test_gas_state.py

@@ -16,6 +16,7 @@
 
 GAS_DATA_MINIMAL = ppmc.GasData(GAS_DATA_CTOR_ARG_MINIMAL)
 
+
 class TestGasState:
     @staticmethod
     def test_ctor_error():
@@ -107,6 +108,7 @@ def test_get_mix_rats():
 
         assert len(sut.mix_rats) == len(sut)
 
+
 #    @staticmethod
 #    def test_to_json():
 #        # arrange