repl: add new line on ctrl+d

Currently the repl ends on the same line which procudes a weird
output. To prevent that, just add a new line in case of ctrl+d.

PR-URL: https://github.com/nodejs/node/pull/26240


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>