Setup the log earlier, so that it's set when doing close() early because of an exception.
Setup the log earlier, so that it's set when doing close() early because of an exception.

I.e. this suppresses the 
{{{
Exception exceptions.AttributeError: SubversionRepository object has no attribute log in <bound method SubversionRepository.__del__ of <trac.versioncontrol.svn_fs.SubversionRepository object at 0xb78b098c>> ignored
}}}
warning.



git-svn-id: 0d96b0c1a6983ccc08b3732614f4d6bfcf9cbb42@2827 af82e41b-90c4-0310-8c96-b1721e28e2e2

rbaumg/trac,rbaumg/trac,rbaumg/trac,rbaumg/trac