End of Line
From Free Pascal wiki
LineEnding is end of line marker. This constant (system unit) is used when writing end of lines to text files.
End of line markers
(Better/also known as line ending characters)
- Line feed (LF, #10 ): Linux, OS X, BSDs, Unix
- Carriage return + Line feed (CRLF, #13#10): Microsoft Windows
- Carriage return (CR, #13): Mac OS Classic