In a VMWARE virtual machine running a fresh minimal install of centos 7. Updates to current packages as of 10/30/2017. MariaDB installed from Maridb Repo. (Version 10.1.28-1) (also verified for 10.2 and version 5.5.56)
The following warnings are generated
I have verified both files exist. Both appear to be in correct format. Both are parts of the tzdata package from the centos base repo.