GitLab

Signed-off-by: Ted Trask <ttrask01@yahoo.com>

adds curl as a depends.

removed post-install message as a UTF environment is set now by
default in /etc/profile.

ref #4272

using snapshot instead of release, as new releases are not tagged
too often.

Neeed for -u option with multithread:

named: -u with Linux threads not supported: no capabilities support or
capabilities disabled at build time

ref #4281

from gentoo