/usr/lib/installed-tests/libostree/gpg-verify-data/gpg.conf is in ostree-tests 2018.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | # This prevents GPG from attempting to create lock files when accessing
# the keyrings and trust database. Necessary for "distcheck", since the
# GPG homedir will be read-only.
lock-never
|