/usr/share/php/tests/Horde_Mime/Horde/Mime/fixtures/bug12842_a.txt is in php-horde-mime 2.2.8-1.
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 6 7 | Content-Type: multipart/related; boundary="=_123"
MIME-Version: 1.0
--=_123
Content-Type: text/plain
FOO
|