erlang/otp — pull request #484 by s1n4 (2014-09-24 09:03:26+00:00)
Title: httpc: send header names in titlecase

Although, header names are case-insensitive, but most commonly used
form of header names is titlecase among HTTP clients.
This pull-request would provide this behaviour, in which httpc would change
header names to titlecase before sending the request.