[opengrok] Added a troff document to the test data

[knut.hat...@sun.com]

Author: Knut Anders Hatlen <Knut.Hatlen at Sun.COM>
Repository: /hg/opengrok/trunk
Latest revision: 59f8b766ece5c86c37510f41ef209bb0363447ff
Total changesets: 1
Log message:
Added a troff document to the test data

Files:
        create: testdata/sources/document/foobar.1