Enforcing newlines in template files results in unwanted Nodes

[jclem]

The default .editorconfig of Ember CLI tells an editor to append new lines to the end of files on write. This can cause surprising behavior when I do not see a new line at the end of my template file, but my rendered component has an extra Text node containing a new line at the end of it.

Appending a newline seems fine for any file that's not a template file, but it can be problematic when applied to templates.

[lukemelia]

Maybe we should strip trailing whitespace in template compilation?

[jclem]

@lukemelia That could break cases where a component's white-space is pre. If I put newlines in the template, keep them, but we should not have the editor append one just to make Unix happy.