Revision 541967

MFH: r541966

security/py-certbot: Improve periodic script

This change will keep the default behavior in the periodic script
and will add options to customize each parameter for those who want to:
 - weekly_certbot_pre_hook
 - weekly_certbot_post_hook
 - weekly_certbot_deploy_hook
 - weekly_certbot_custom_args

PR:		245674, 245954
Reported by:	amdmi3, fjoe
Reviewed by:	koobs
Approved by:	dbaio, koobs (python, maintainer)
Differential Revision:	https://reviews.freebsd.org/D25391

Approved by:	ports-secteam (joneum)