Formatting for one-header-per-line

It's kind of clunky, thus tested with various headers:

headers: {
	'content-length':'xxxxxx',
	'a':'b',
	'b':'c',
	'accept':'json',
	'd':'e',
	'Content-Type':'json'
}
Merge branch 'master' into gh-pages

* master:
  Formatting for one-header-per-line