fix errors

main.go

@@ -276,7 +276,7 @@ func cleanCache(jobs []Job) error {
 		}
 
 		splitName := strings.Split(file.Name(), "-")
-		if len(splitName < 1) {
+		if len(splitName) < 1 {
 			continue
 		}
 
@@ -299,4 +299,6 @@ func cleanCache(jobs []Job) error {
 		// Second, check if this version of a split job message is the active one, if not then delete
 		// TBD
 	}
+
+	return nil
 }