Update bucket_relocate.sh to work on GCE
Update bucket_relocate.sh to work on GCE

BrandonY/gsutil,GoogleCloudPlatform/gsutil,fishjord/gsutil,mattdr/gsutil,dtjackson/gsutil,chriskuehl/gsutil-debian,dimfeld/gsutil,GoogleCloudPlatform/gsutil,craigcitro/gsutil,ttiurani/gsutil