/usr/share/GConf/gsettings/org.gnome.crypto.pgp_keyservers.convert is in gnome-keyring 3.2.2-2ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | [org.gnome.crypto.pgp]
keyservers = /desktop/pgp/keyservers/all_keyservers
|