MRI 1.9.3-p286 and 1.9.3-p327 breaks spec

[danielevans]

When upgrading to MRI p286/327 the following error crops up in specs:

Failure/Error: b.should eq "日本語 a@example.com, 日本語 b@example.com"

   expected: "日本語 <a@example.com>, 日本語 <b@example.com>"
        got: "日本語= <a@example.com>, 日本語= <b@example.com>"

   (compared using ==)
 # ./spec/mail/encodings_spec.rb:615:in `block (4 levels) in <top (required)>'

[mikel]

Thanks, fixed in commit bb25038