Fix pylint R1736 warnings

taxcalc/tests/test_policy.py

@@ -561,7 +561,7 @@ def test_order_of_indexing_and_level_reforms():
     make no difference to the post-reform policy parameter values.
     """
     # specify two reforms that raises the MTE and stops its indexing in 2015
-    reform = [
+    reforms = [
         {
             'SS_Earnings_c': {2015: 500000},
             'SS_Earnings_c-indexed': {2015: False}
@@ -576,17 +576,17 @@ def test_order_of_indexing_and_level_reforms():
     ppo = [Policy(), Policy()]
     # apply reforms to corresponding Policy object & check post-reform values
     syr = Policy.JSON_START_YEAR
-    for ref, _ in enumerate(reform):
+    for idx, reform in enumerate(reforms):
         # confirm pre-reform MTE values in 2014-2017
-        mte = ppo[ref]._SS_Earnings_c
+        mte = ppo[idx]._SS_Earnings_c
         assert mte[2014 - syr] == 117000
         assert mte[2015 - syr] == 118500
         assert mte[2016 - syr] == 118500
         assert mte[2017 - syr] < 500000
         # implement reform in 2015
-        ppo[ref].implement_reform(reform[ref])
+        ppo[idx].implement_reform(reform)
         # confirm post-reform MTE values in 2014-2017
-        mte = ppo[ref]._SS_Earnings_c
+        mte = ppo[idx]._SS_Earnings_c
         assert mte[2014 - syr] == 117000
         assert mte[2015 - syr] == 500000
         assert mte[2016 - syr] == 500000