t: fix remote-helpers bzr test

So that the committer is reset properly.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Git v1.9.1+fc3

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Merge tag 'v1.9.1+fc3' into travis

Git 1.9.1+fc3

* tag 'v1.9.1+fc3':
  Git v1.9.1+fc3
  t: fix remote-helpers bzr test
travis: add a test for everything

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>