/usr/share/lintian/overrides/iraf is in iraf 2.16.1+2018.03.10-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | # Since the package is really old, we will find some really old
# files here. This is not a bug.
package-contains-ancient-file *
|