Missing spec variable which is being created by json.load only
Missing spec variable which is being created by json.load only

While running --restore-spec SOURCE spec doesn't exist so
if 'base_prefix' not in spec trow an exception

heroku/wal-e,equa/wal-e,intoximeters/wal-e,ArtemZ/wal-e,x86Labs/wal-e,RichardKnop/wal-e,ajmarks/wal-e,wal-e/wal-e,DataDog/wal-e,nagual13/wal-e,tenstartups/wal-e