Description:
------------
We are trying to parse an e-mail with mailparse extension. The header Mime-Version is as follows: "Mime-Version: 1.0;", note the semicolon at the end. Due to this semicolon mailparse treats the mail as text/plain.

Test script:
---------------
$tekst = 'Mime-Version: 1.0;
Content-Type: multipart/Alternative; boundary="=====1473780076CSSSMTP_CLIENT=="

--=====1473780076CSSSMTP_CLIENT==
Content-Type: text/plain

Hello please pay attached invoice
--=====1473780076CSSSMTP_CLIENT==
Content-Type: text/html; charset=utf-8

Hello please pay attached invoice

--=====1473780076CSSSMTP_CLIENT==--';
$stream = fopen('php://memory', 'r+');
fwrite($stream, $tekst);
fseek($stream, 0);
$resource = mailparse_msg_create();
mailparse_msg_parse($resource, fread($stream, 10000));
$data = mailparse_msg_get_part_data(mailparse_msg_get_part($resource, 1));
print_r($data['content-type']);

Expected result:
----------------
multipart/alternative

Actual result:
--------------
text/plain