tests/test-branches.out

Add output markers to test-bundle so it's easier to spot the source of
output diffs.

marked working directory as branch a
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
marked working directory as branch b
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
marked working directory as branch c
c                              5:5ca481e59b8c
a                              1:dd6b440dd85a
b                              4:22df7444f7c1 (inactive)
default                        0:19709c5a4e75 (inactive)
-------
c                              5:5ca481e59b8c
a                              1:dd6b440dd85a