net-vpn/openvpn: bug 622438: upstream mirror issue

net-vpn/openvpn: bug 622438: upstream mirror issue

Re-downloaded tarball and verified against upstream GPG signature; some
upstream mirrors had bad tarball.

PGP Web of Trust from key of 0xEE05E6F6A48F6136/robbat2@gentoo.org to
0x57DB9DAB613B8DA1/davids@openvpn.net, used for signing
0x12F5F7B42F2B01E7/security@openvpn.net:
https://pgp.cs.uu.nl/paths/ee05e6f6a48f6136/to/57db9dab613b8da1.html

Gentoo-Bug: 622438
Gentoo-URL: https://bugs.gentoo.org/show_bug.cgi?id=622438
Fixes: https://bugs.gentoo.org/show_bug.cgi?id=622438
Package-Manager: portage-2.3.6