This update for libetpan fixes the following issues:

Update to 1.9.4 (boo#1174579, CVE-2020-15953):

* Bugfixes on QUOTA
* Varios warning fixes & build fixes 

Update to version 1.9.3

* Added IMAP CLIENTID / SMTP CLIENTID support
* Use Cyrus SASL 2.1.27

Update to version 1.9.2

* Support of TLS SNI
* LMDB for cache DB
* Fixed build with recent versions of curl

This update was imported from the openSUSE:Leap:15.2:Update update project.