'version' command is misleading and should be removed

[mlh]

The version command gives version information
about bzr, rather than the version of the code it
is managing. Version info about bzr is already
given by --version.

Background: I'll be migrating from bzr from bazaar1
I was looking for something like bazaar1's tree-version
command.

The version command should be removed; alternatively
it could give the same or similar info as 'testament'
or the command provided by John Meinel's version-info
plugin.

This was discussed on the mailing list a while ago
and support in principal by Martin at least.
https://lists.ubuntu.com/archives/bazaar-ng/2006q1/008902.html

Also see John Meinel's 'version-info' plugin at
http://bzr.arbash-meinel.com/plugins/version_info/

[mlh (mlh)]

Pretty trivial. I checked that nothing depended
on this cmd_.

[John A Meinel (jameinel)]

Can we have some comments on this.
I'm okay with removing 'bzr version' and just having 'bzr --version'.

[Alexander Belchenko (bialix)]

I think it's common practice to use short option as '-v' or '-V' with '--version'.
I think with this addition we can remove 'version' command (or mark it as deprecated).

[Wouter van Heyst (larstiq)]

Having just --version is fine with me.

[John A Meinel (jameinel)]

I think we should deprecated "bzr version" first, which should be trivial, and then we can remove it later.

I also think adding -V would be reasonable. I've seen people expect it (it is what python -V uses).

[Ian Clatworthy (ian-clatworthy)]

I'm ok with dropping version: less is more in this case. While both git and hg have a version command, svn doesn't, i.e. some users will expect it but many won't.

[Neil Martinsen-Burrell (nmb)]

We already use the -V option as a shortcut for --versioned in `bzr status`. From a consistency standpoint, I think that re-using it to be a shortcut for --version is a bad idea.

Also, removing the version command loses the functionality provided by bzr version --short which doesn't seem to appear anywhere else. I think we should avoid the regression and keep the (minimal) amount of code for cmd_version as it is.