GCS log to gcs.log
GCS log to gcs.log

Signed-off-by: John Howard <50ae662f5fcde39b7d1ed786133b7c61a25411dd@microsoft.com>

jterry75/opengcs,rn/opengcs,jterry75/opengcs,jterry75/opengcs,rn/opengcs,Microsoft/hcsshim