f.IntVarP(&client.Limit,"max","m",256,"maximum number of releases to fetch")
f.IntVar(&client.Offset,"offset",0,"next release name in the list, used to offset from start value")
f.StringVarP(&client.Filter,"filter","f","","a regular expression (Perl compatible). Any releases that match the expression will be included in the results")
f.StringVarP(&client.Selector,"selector","l","","Selector (label query) to filter on, supports '=', '==', and '!='.(e.g. -l key1=value1,key2=value2)")