hard line terminator
Computing term for a line-ending character or sequence that is explicitly present in the data, as opposed to a soft line break inserted for display.
テキストエディタでハード行末を表示する設定にした。
I set the text editor to show hard line terminators.
Compound of ハード (hard) and 行末 (line end). A technical term likely calqued from English 'hard line terminator'.