Remove padding bytes on Windows temp paths
Remove padding bytes on Windows temp paths

Logging a std::string with padding bytes can lead to garbled output
and failures in our unit tests.

Change-Id: I36558c49a34a047f074db1f0401ae6d9bc158f5b
Reviewed-on: https://gerrit.dechocorp.com/17175
Reviewed-by: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@mozy.com>
Reviewed-by: Jenkins <49695b0f9c673fd73dab0ff3f84b5ced9302cc6a@mozy.com>

ccutrer/mordor,adfin/mordor,ccutrer/mordor,adfin/mordor,mozy/mordor,mtanski/mordor,ccutrer/mordor,mozy/mordor,mozy/mordor,adfin/mordor,mtanski/mordor,mtanski/mordor