

Description:
The APPEND_LINE built-in appends the current line to the previous line. Only
the line terminator character from the previous line is eliminated. The current
editing position remains unchanged. Padding, which adds spaces when the
current position is beyond the end of line or mid-tab, will be performed if required.
APPEND_LINE does nothing if the current position is either the first line of
the buffer or past the end of the buffer.
Syntax:
APPEND_LINE
Errors:
TPU$_NOCURRENTBUF Not in a buffer.
TPU$_NOTMODIFIABLE Current buffer is READ_ONLY.
APPEND_LINE