Include ISO 8601-required "Z" at end of timestamp string for gsutil ls -l output
Include ISO 8601-required "Z" at end of timestamp string for gsutil ls -l output

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