Extra newlines confuse parsing of variable names

[rcjsuen]

It seems the escape parsing is off as only one of the \n in the \n\n has been removed. The name of the variable should be image and not im\nage.

import { DockerfileParser } from 'dockerfile-ast';

const content = "FROM $im\\\n\nage";

let dockerfile = DockerfileParser.parse(content);
let variable = dockerfile.getInstructions()[0].getVariables()[0];
console.log(variable.getName());

im
age