osc wipebinaries: add missing check for commandline arguments, which could

cause a PACKAGE argument to be ignored

osc/commandline.py

@@ -1900,6 +1900,8 @@ Please submit there instead, or use --nodevelproject to force direct submission.
 
         if len(args) < 1:
             raise oscerr.WrongArgs('Missing <project> argument.')
+        if len(args) > 2:
+            raise oscerr.WrongArgs('Wrong number of arguments.')
 
         if len(args) == 2:
             package = args[1]