- Update to 3.21.0:
* add ignoreduplicates directive to allow duplicate file matches
* add --wait-for-state-lock option to wait for lock on the state file
* avoid failure when an anonymous non-privileged user runs logrotate
* support home dir expansion in olddir
* reduce unnecessary rename operations with start N where N > 1
* unify handling of log levels
* do not print error: when exit code is unaffected

- Replace the vendor config logic:
* Remove logrotate-vendor-dir.patch and the code from logrotate.service
(also addresses boo#1202406)
* Add a wrapper script which collects all config files in the right
order
- Create logrotate.keyring with kdudka's public key
- Drop logrotate-rpmlintrc: rpmlint doesn't look at /usr/etc/logrotate.d/,
so the false positive doesn't trigger.