Process lines that start with '\'

Sorry, I missed 2 issues here in CR.

1) This modifies the value you passed in as an argument (by appending to a hunk.Body), which is usually not good behavior, especially for a Print function.
2) We don't want the hunk body in Go to contain this special "No newline at end of file" string. That is an artifact of encoding; it'd be as though when you decoded a JSON object into a Go struct, all the string values were surrounded with double quotes or were escaped.

I'll submit a PR (saw some Docker and AWS commits that need to handle this case).