Add the ability to set the upstream branch

Add the ability to set the upstream branch

I can never remember the syntax (and always forget I have to specify the branch to set the upstream branch on) when using "git branch".

This patch just allows git-cl upstream to set the branch if an argument is provided. With no arg it prints the current one as it does today.

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=150945

[brettw, 2012-08-09 23:09:21]

My workflow is to make a bunch of branches that depend on each other, send them
up for review, and slowly commit, deleting as I go. This means I'm always having
to set the upstream branch now that we use it, and I can never remember the
syntax. Since git cl upstream exists, I added the ability to let this set the
upstream branch as well. This seems pretty natural:

  git cl upstream prv_branch

[Dirk Pranke, 2012-08-09 23:22:45]

lgtm.

[Dirk Pranke, 2012-08-09 23:23:05]

On 2012/08/09 23:22:45, Dirk Pranke wrote:
> lgtm.

I get confused by the syntax every time as well; I have a post-it on my monitor
for this :).

[commit-bot: I haz the power, 2012-08-09 23:40:05]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/brettw@chromium.org/10825285/1

[commit-bot: I haz the power, 2012-08-09 23:42:54]

Change committed as 150945