Backport fix from php-mime-mail-parser to fix attachment parsing
Summary:
- Allow proper parsing of attachments with missing Content-Disposition header
Test Plan:
- Create application email for Maniphest.
- Send example broken email from Outlook 2007 to that address Outlook_Inline.eml38 KBDownload
Reviewers: Blessed Reviewers, epriestley
Reviewed By: Blessed Reviewers, epriestley
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D16584