Merge pull request #317 from yuta-oxo/fix_sort_list

fix bug: sort_list() returns strange results

cJSON_Utils.c

@@ -510,7 +510,7 @@ static cJSON *sort_list(cJSON *list, const cJSON_bool case_sensitive)
     while ((first != NULL) && (second != NULL))
     {
         cJSON *smaller = NULL;
-        if (compare_strings((unsigned char*)first->string, (unsigned char*)second->string, false) < 0)
+        if (compare_strings((unsigned char*)first->string, (unsigned char*)second->string, case_sensitive) < 0)
         {
             smaller = first;
         }