Fix logging

Author: jmgasper

src/main/java/com/appirio/tech/core/service/identity/clients/MemberServiceClient.java

@@ -73,7 +73,7 @@ public Set<RoleSubject> getMembers(List<TCID> userIds) throws Exception {
         Response response = target.request(MediaType.APPLICATION_JSON).header("Authorization", "Bearer " + m2mToken).get();
 
         if (response.getStatusInfo().getStatusCode() != HttpStatus.OK_200) {
-            LOGGER.error("Unable to get members: {}", response);
+            LOGGER.error("Unable to get members: " + response.toString());
             throw new SupplyException("Unable to get members from the API, the returned status code is: " + response.getStatusInfo().getStatusCode());
         }