Fix copypaste fail in ModifySnapshotAttribute
Fix copypaste fail in ModifySnapshotAttribute

Fixes TOOLS-179 (again)

vasiliykochergin/euca2ools,gholms/euca2ools,nagyistoce/euca2ools,nagyistoce/euca2ools,gholms/euca2ools,vasiliykochergin/euca2ools,jhajek/euca2ools,jhajek/euca2ools