rjbs/Email-MIME-ContentType — pull request #3 by Schuk (2014-05-09 15:08:43+00:00)
Title: Fix WSP folding before attribute values

Some mailservers do a line folding within the Content-Type parameters (see below or the tests).

For example:
> boundary=
> "=_0c5bb6a1"

[RFC2822](http://tools.ietf.org/html/rfc2822#section-2.2.3) mentions that a folding after higher-level syntactic breaks is allowed. The "=" within attributes seems to be interpreted as such as well.

The fix removes optional whitespaces after the equal sign.