Log Message:
duo-unix: Update to 1.11.4.

Changes since 1.10.4:

duo_unix-1.11.4 - May 18, 2020
  Added support for Ubuntu 20.04.
  Added support tool to collect information (e.g. logs and PAM stacks) you can
  send to Duo Support when troubleshooting issues.
  Ubuntu 12.04 no longer supported.
  Updated GPG public key for downloading distribution packages.

duo_unix-1.11.3 - October 2019
  Support for CentOS 8, Red Hat 8, and Debian 10.
  Improved validation of BSON messages.
  Updated GPG public key for downloading distribution packages.

duo_unix-1.11.2 - June 2019
  Published a guide to recommended Kerberos configuration for Duo Unix. Thanks
  to Neal Poole at Facebook for bringing expertise and attention to this topic.
  Updated SELinux policy to allow local logins to use the pam_duo PAM module
  and made sshd configurable. This requires installation of
  selinux-policy-devel on CentOS and RHEL 7 as a prerequisite.
  Added support for spaces in group names when escaped with backslashes in
  pam_duo.conf and login_duo.conf
  Debian 7 no longer supported.

duo_unix-1.11.1 - November 2018
  Fixed bug causing console login to fail on certain systems.
  Debian 7 support is deprecated and will be removed in the next release.

duo_unix-1.11.0 - October 2018
  Added configuration options for parsing the Duo username out of the GECOS
  field: gecos_username_pos and gecos_delim.
  Support for Debian 9 (Stretch).
  CentOS 5 no longer supported.

duo_unix-1.10.5 - September 2018
  CentOS 5 Support is deprecated and will be removed in the next release.
  Fixed a bug that caused a segfault on systems where the hostname wasn't
  retrievable.