Removing "$Id$" lines

[Mojca Miklavec]

On 1 November 2016 at 01:03, Ryan Schmidt wrote:
> On Oct 31, 2016, at 17:17, Dan Ports wrote:
>>
>> Any reason not to just bulk-remove them all at once?
>
> That would probably tie up the buildbot for weeks or months. We could cancel those builds, but even the act of scheduling 20,000 builds per builder is much more than we've ever attempted before and I think it would not be happy about it. At the very least, I would want to wait until I've switched the buildbot from SQLite to PostgreSQL.
>
> Please, for now, just make this change together with other necessary changes.

Why not:
- wait until all the slaves have something non-trivial to do (make
sure the queue is not empty)
- do a bulk commit
- cancel the job manually

Mojca