bundle: support multiple destinations...
bundle: support multiple destinations
`hg outgoing` and `hg push` now support multiple destination. We do the same
for `hg bundle`. Various other commands needs this kind of behavior and it
would be create to factor this code out for their usage. However this is an
adventure for another time.
They are some minor change to the tests (in addition to the new test for the
feature):
* one because I updated a message to plurals,
* another one because the error changed, and I actually find it clearer.
Differential Revision:
https://phab.mercurial-scm.org/D10414
