MFH: r396262

graphics/libwmf: Fix bug introduced by patch for CVE-2015-4696

• The original CVE-2015-4696 patch from upstream was missing line numbers in the first patch hunk. The security issue was resolved by the restructured code but a new potential bug was introduced in the process.
• While here, update to my FreeBSD.org email

PR: 201513
Reported by: Sevan Janiyan <venture37@geeklan.co.uk>
Obtained from: Fedora libwmf RPM git (commit c8bc53c1)
Approved by: ports-secteam (feld), feld (mentor)