/usr/share/doc/sysprofile/examples/etc/sysprofile.d/ignoreof.bash is in sysprofile 0.3.9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | # This prevents a logout with just a single ctrl-d:
#set -x
export IGNOREEOF=1
|