2) Incorporate changes from PR 57382:
- add rc.subr support
- cleanup sed variable replacement scripts
- add pointer to Clam Antivirus to installation message
PR 57382 was closed by mistake, I thought the contents
have already been commited, while they were not.
PR: 59323
Submitted by: milter@free.fr (1)
Submitted by: Martin Matuska <martin@tradex.sk> (2)
Approved by: MAINTAINER
Don't remove amavis user/group and directories, just remind user that they
should do it manually if they don't want to use the port anymore.
PR: 51153
Submitted by: Blaz Zupan <blaz.zupan@amis.net>