main
Add adminconfdir and --enable-adminconf to set it. Configuration paths in sudo are now a colon-separated list of files with the adminconfdir instance first (if enabled), followed by a sysconfdir instance.
Update embedded copy of zlib to version 1.3.
Update embedded copy of zlib to version 1.3.2.
Update embedded copy of zlib to version 1.2.12. Fixes CVE-2018-25032
Top level directory reorg Move src/po -> po Combine common and compat -> lib/util Move zlib -> lib/zlib