security/acme.sh: Use .conf suffix for /usr/local/etc/newsyslog.conf.d/

[woodsb02]

Summary

security/acme.sh: Use .conf suffix for /usr/local/etc/newsyslog.conf.d/

Rename files intended for installation to /usr/local/etc/newsyslog.conf.d/
to end with a '.conf' suffix.

Proposed changes to /etc/newsyslog.conf will only include files from the
/usr/local/etc/newsyslog.conf.d/ directory which end with '.conf' and do
not beginning with a '.' character. https://reviews.freebsd.org/D17086

Approved by: dvl (maintainer)

Test Plan

poudriere testport -j 12amd64: ok

[dvl]

I support the newsyslog.conf changes. Nice.