Bug#1111709: tiv: Misrepresenting tiv.cpp copyright

[Bastian Germann]

Source: tiv
Version: 1.2.1+dfsg-1
Severity: important

The Files: src/tiv.cpp stanza in d/copyright is misrepresenting the
license of the file, which is only presented in the comment.

Please correct this and get rid of the BSD license file reference.