w->rf = replace_file_start (fh, "w", 0666, &w->file);
if (w->rf == NULL)
{
- msg (ME, _("Error opening `%s' for writing as a system file: %s."),
+ msg (ME, _("Error opening `%s' for writing as a CSV file: %s."),
fh_get_file_name (fh), strerror (errno));
goto error;
}