FT_FDELETE()
 Deletes a line from the currently selected text file
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 Syntax

      FT_FDELETE( [ < nLines > ] ) -> NIL

 Arguments

     <nLines> is the number of lines to be eliminated, beginning with
     the current record position.

     If <nLines> is omitted, the current record is deleted only.

 Returns

     NIL

 Description

     This function deletes one or several lines of text from the file
     in the currently selected text file workarea.  Text lines are
     delimited with a CRLF pair.  The record pointer is not moved.

 Examples

     // delete the next 4 lines from a file
     FT_FUSE( "test.txt" )

     FT_FDELETE( 4 )

 Source: FTTEXT.C

 Author: Brice de Ganahl and Steve Larsen