Enhance log from test_flag_system_as_converted.py test failures.

When the log files on the converted system fail to validate, print the
log files in full so that we know what the data was.

tests/integration/tier1/checks-after-conversion/test_flag_system_as_converted.py

@@ -35,12 +35,20 @@ def test_flag_system_as_converted(shell):
     with open(C2R_MIGRATION_RESULTS, "r") as data:
         data_json = json.load(data)
         # If some difference between generated json and its schema invoke exception
-        jsonschema.validate(instance=data_json, schema=C2R_MIGRATION_RESULTS_SCHEMA)
+        try:
+            jsonschema.validate(instance=data_json, schema=C2R_MIGRATION_RESULTS_SCHEMA)
+        except Exception:
+            print(data_json)
+            raise
 
     if submgr_disabled_var not in query:
         assert os.path.exists(C2R_RHSM_CUSTOM_FACTS)
 
         with open(C2R_RHSM_CUSTOM_FACTS, "r") as data:
             data_json = json.load(data)
             # If some difference between generated json and its schema invoke exception
-            jsonschema.validate(instance=data_json, schema=C2R_RHSM_CUSTOM_FACTS_SCHEMA)
+            try:
+                jsonschema.validate(instance=data_json, schema=C2R_RHSM_CUSTOM_FACTS_SCHEMA)
+            except Exception:
+                print(data_json)
+                raise