Email the owners of the given repositories telling them that terms and
conditions of the service must be abided. A private redmine note is
added to an issue to keep track of these requests. This script must be
executed on the Gitea host.
Usage:
# cat repositories.txt
https://forge.chapril.org/user1/repo1https://forge.chapril.org/userX/repoZ
# ./notify_owners.py repositories.txt
