Typo in C++ test program output

cxx/spir_test.cpp

@@ -100,7 +100,7 @@ int main(int argc, char **argv)
 
         string query_msg = client.query(idx);
         size_t query_client_us = elapsed_us(&query_client_start);
-        cout << "Preprocessing client: " << query_client_us << " µs\n";
+        cout << "Query client: " << query_client_us << " µs\n";
         cout << "query_msg len = " << query_msg.length() << "\n";
 
         struct timeval query_server_start;