Before, strings like "foo.bar@example.com" would be converted to
"foo. <bar@example.com>" when they should be "unknown
<foo.bar@example.com>".
Signed-off-by: NRichard Hansen <rhansen@bbn.com>
Reviewed-by: NFelipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>