command: fix --quiet, --really-quiet options

These are not mapped as property, so the option-property bridge has to
skip them. Do this automatically if a property is not found. I know that
this affects --quiet and --really-quiet, but in theory there could be
more.

player/command.c

@@ -302,6 +302,8 @@ int mp_on_set_option(void *ctx, struct m_config_option *co, void *data, int flag
     }
 
     int r = mp_property_do_silent(name, M_PROPERTY_SET, data, mpctx);
+    if (r == M_PROPERTY_UNKNOWN)
+        goto direct_option; // not mapped as property
     if (r != M_PROPERTY_OK)
         return M_OPT_INVALID;