buildbot/buildbot — pull request #304 by tomprince (2012-01-19 04:28:56+00:00)
Title: ShellCommand.describe(): Ignore AttributeError

We blindly call len on self.command. This will fail occasionally if
self.command is renderable, but has not yet been rendered. This is harmless,
and is just a transient lack of information in the WebStatus.

Fixes #2122