Thanks. I committed the suggested change in epel7 branch (as I don't
have commit access on master / f21).
https://pkgs.fedoraproject.org/cgit/tripwire.git/commit/?h=epel7&id=1...
And here is the scratch build:
https://koji.fedoraproject.org/koji/taskinfo?taskID=7884030
I guess now I need to wait for the maintainer to do 'git merge
origin/epel7' and build it for F21 and master.