LibreSSL enabled by default

The LibreSSL implementation is now used by default. This fork of OpenSSL is maintained and pro-actively developed by the OpenBSD team.

We believe that at long-term it will benefit the whole FOSS community, and this will help to not repeat the infamous heartbleed.

If you still have the openssl package installed, it should be replaced by the libressl-openssl package to make a full switch to LibreSSL:

# xbps-install -Sv libressl-openssl