MFH: r430544

Update to upstream version 4.6.4

Detailed log:

• Update to upstream version 4.6.4
• Fix potential security issue (installation of globally-writable files)

PR: 214842
Submitted by: shoesoft@gmx.net
Approved by: bsd@volki.at (maintainer)

Approved by: ports-secteam (junovitch)