[MERGE] Fix for 306394: warning, not error, on non-existent file.

[Stephen J. Turnbull]

Aaron Bentley writes:

 > > In particular, it might provide excessively verbose output which
 > > then would have to have the relevant bits parsed out.  In any
 > > case, that's not what it does ... since, oh, 1992 or so.
 > 
 > But Bazaar didn't exist in 1992.  I can only assume someone wrote a
 > backend for Bazaar much more recently.

Sure.  And they wrote it against a vc.el API which all other VCSes
evidently provide reasonable facsimiles of.  Guess what?  If Bazaar
doesn't join the crowd, Emacs may go find another VCS which does.
I've already posted here that I think that's stupid, this does not
need to be a blocker.  But I don't make those decisions.

If you want to be responsive to the Emacs developers' concerns, you
really need to get past the current implementation of bzr and look to
see if there's some way to give them what they want.  There may not be
a good way on this issue, but ISTM that Karl's proposal is quite
reasonable, given that the best you can say for the current policy of
erring on a non-existent file is "may as well be this way."