null_stdout       119 maint/gnulib/lib/execute.c          bool null_stdin, bool null_stdout, bool null_stderr,
null_stdout       189 maint/gnulib/lib/execute.c       && (!(null_stdout || null_stderr)
null_stdout       202 maint/gnulib/lib/execute.c         (HANDLE) _get_osfhandle (null_stdout ? nulloutfd : STDOUT_FILENO);
null_stdout       281 maint/gnulib/lib/execute.c           || (null_stdout
null_stdout        52 maint/gnulib/lib/execute.h                     bool null_stdin, bool null_stdout, bool null_stderr,