crash merging branch

[Alex Launi]

An error occurred trying to merge lp:unity: \n is not a valid character in an author identity
Traceback (most recent call last):
  File "bin/tarmac", line 6, in <module>
    main()
  File "/home/unity-merger/tarmac-jenkins/tarmac/bin/__init__.py", line 32, in main
    registry.run(args)
  File "/home/unity-merger/tarmac-jenkins/tarmac/bin/registry.py", line 92, in run
    self._run(args)
  File "/home/unity-merger/tarmac-jenkins/tarmac/bin/registry.py", line 49, in _run
    run_bzr(args)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 1150, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 699, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 721, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 135, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 165, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/home/unity-merger/tarmac-jenkins/tarmac/bin/commands.py", line 393, in run
    self._do_merges(branch)
  File "/home/unity-merger/tarmac-jenkins/tarmac/bin/commands.py", line 304, in _do_merges
    reviews=self._get_reviews(proposal))
  File "/home/unity-merger/tarmac-jenkins/tarmac/branch.py", line 151, in commit
    revprops=revprops, authors=authors)
  File "<string>", line 4, in commit_write_locked
  File "/usr/lib/python2.7/dist-packages/bzrlib/workingtree_4.py", line 209, in commit
    result = WorkingTree.commit(self, message, revprops, *args, **kwargs)
  File "<string>", line 4, in commit_write_locked
  File "/usr/lib/python2.7/dist-packages/bzrlib/mutabletree.py", line 202, in commit
    possible_master_transports)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commit.py", line 197, in update_revprops
    raise AssertionError('\\n is not a valid character '