"repo sync" message upon detaching non-tracking heads is confusing

[GoogleCodeExporter]

Affected Version: v1.12.16
Environment: Debian Testing

What steps will reproduce the problem?
1. repo init && repo sync
2. create/checkout out a local non-tracking branch in one sub-project
3. repo sync produces the message "path/to/sub-project/: leaving branchname; 
does not track upstream"
4. user is confused where his branch has gone

What is the expected output? What do you see instead?

give a more explicit message, like: "path/to/sub-project/: detaching HEAD from 
branch '%s'; does not track upstream"

Original issue reported on code.google.com by fgghaqwb...@gmail.com on 30 Jul 2014 at 8:33

Attachments:

• 0001-More-explicit-messages-when-detaching-HEAD-in-repo-s.patch