- osc.cli.parse: fixed _resolve_option method in class _OscNamespace

Use "info.set" instead "info.add". Broken by commit 2a23166
(which inter alia changed the semantic of "add") which was done in Oct12.
We really need a testsuite for the cli in order to detect such breakages:/

osc/cli/parse.py

@@ -82,7 +82,8 @@ def _resolve_option(self, info, opt):
         while args:
             cur = args.pop(0)
             res.append(oargs.resolve(*cur, path=self._path()))
-        info.add(name, res)
+        # use set to overwrite the old list
+        info.set(name, res)
 
     def _resolve_positional_args(self):
         """Resolve positional arguments.