Mods to cp help text, per http://code.google.com/p/gsutil/issues/detail?id=98
Mods to cp help text, per http://code.google.com/p/gsutil/issues/detail?id=98


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