Fix sshrepo.unbundle We weren't reading all the data sent by the server. Depending on the system, the remote hg (actually, the remote python) could send a "close failed: [Errno 32] Broken pipe", making some tests fail.

adding a
adding b
copy .hg/patches to .hg/patches.1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
M b
a
b
merging with queue at: .hg/patches.1
applying rm_a
Now at: rm_a
b
Patch queue now empty