[vdr] minor OSD bug: missing menu update

[Alfred Zastrow]

Hello Klaus,

please try:

- "pause" the live picture
- view the recording by pressing "play"
- press "exit" to stop viewing (OSD shows the recording list)
- delete the live recording -> 2 x "OK" -> the timer is stoping
- press "exit" to go to the main menu, you will still see the option to 
   stop the recording, but this is allready stopped


regards
Alfred