removed newline in passing log

Author: jmafoster1

causal_testing/json_front/json_class.py

@@ -273,7 +273,7 @@ def _execute_test_case(
             effect_estimate, ci_low, ci_high, outcomes = adequacy.measure_adequacy(100)
 
             self._append_to_file(f"KURTOSIS: {effect_estimate.mean()}", logging.INFO)
-            self._append_to_file(f"PASSING:\n{sum(outcomes)}/{len(outcomes)}", logging.INFO)
+            self._append_to_file(f"PASSING: {sum(outcomes)}/{len(outcomes)}", logging.INFO)
 
         if causal_test_result.ci_low() is not None and causal_test_result.ci_high() is not None:
             result_string = (