verilator/test_regress/t/t_flag_x_assign_bad.out

%Error: Unknown setting for --x-assign: 'bad_one'
        ... Suggest '0', '1', 'fast', or 'unique'
        ... See the manual at https://verilator.org/verilator_doc.html?v=latest for more assistance.
%Error: Exiting due to