SonarCloud: minor codesmells

src/lib/ares_process.c

@@ -797,7 +797,7 @@ static ares_status_t ares__append_tcpbuf(struct server_state *server,
   return ares__buf_append(server->tcp_send, query->qbuf, query->qlen);
 }
 
-static size_t ares__calc_query_timeout(struct query *query)
+static size_t ares__calc_query_timeout(const struct query *query)
 {
   const ares_channel_t *channel  = query->channel;
   size_t                timeplus = channel->timeout;

src/tools/adig.c

@@ -236,7 +236,6 @@ static ares_bool_t read_cmdline(int argc, const char **argv,
                  "%c requires an argument", state.optopt);
         return ARES_FALSE;
 
-      case '?':
       default:
         snprintf(config->error, sizeof(config->error),
                  "unrecognized option: %c", state.optopt);