{
{   The purpose of this request is to write a new line to a display.  If a line
{ has been partially written to the display, this request flushes that line
{ prior to writing the specified line.  If this operation would cause the page
{ length of the display to be exceeeded, this request calls
{ clp$new_display_page.
{
{       CLP$PUT_DISPLAY (DISPLAY_CONTROL, STR, TRIM_OPTION, STATUS)
{
{ DISPLAY_CONTROL: (input, output)  This parameter specifies the
{       display_control variable initialized when the display was opened.
{
{ STR: (input)  This parameter specifies the line to be written to the display.
{
{ TRIM_OPTION: (input)  This parameter specifies whether trailing spaces in STR
{       are to be trimmed prior to writing the line (CLC$TRIM) or not
{       (CLC$NO_TRIM).
{
{ STATUS: (output)  This parameter specifies the request status.
{
