Truncate Spooled File. Provides a solution for the case where you 1) Already
have spooled output 2) Need to print on a printer that is not as wide as the
print lines 3) Don't want the 'fold' function which produces multiple print
lines. TCTSPLF re-prints the spooled file and truncates the print line at a
specified position. Useful for dealing with PC printers.