WRITE-LINE WRITE-FILE XMAX
WRITE-LINE ( str-adr str-len file -- )  
ansi 11.6.1.2485 <FILE>
write characters from the string buffer to a file, and add the line-terminator to the end of it. returns a status code.

reference: p4_write_line in ../src/file.c:0263, export CO WRITE-LINE