setup-node/node_modules/strip-eof/index.js

'use strict';
module.exports = function (x) {
	var lf = typeof x === 'string' ? '\n' : '\n'.charCodeAt();
	var cr = typeof x === 'string' ? '\r' : '\r'.charCodeAt();

	if (x[x.length - 1] === lf) {
		x = x.slice(0, x.length - 1);
	}

	if (x[x.length - 1] === cr) {
		x = x.slice(0, x.length - 1);
	}

	return x;
};