Format: SHOW TRUNCATE

 The SHOW TRUNCATE (abbreviated SH TR) command shows the current setting
 of the option for displaying long lines in change mode.  The default is
 TRUNCATE, which means that lines longer than the screen width are
 truncated on the display (the actual text is not altered).  If you turn
 off this option by entering SET NOTRUNCATE, long lines are wrapped to as
 many screen lines as are necessary to display the entire screen.