fix bug in purge for local storage

cmd/cmd.go

@@ -12,7 +12,7 @@ import (
 	"google.golang.org/api/googleapi"
 )
 
-var Version = "1.2.0"
+var Version = "1.2.1"
 var helpTemplate = `NAME:
 {{.Name}} - {{.Usage}}
 

server/storage.go

@@ -102,7 +102,7 @@ func (s *LocalStorage) Purge(days time.Duration) (err error) {
 				return nil
 			}
 
-			if info.ModTime().After(time.Now().Add(-1 * days)) {
+			if info.ModTime().Before(time.Now().Add(-1 * days)) {
 				err = os.Remove(path)
 				return err
 			}