Add an exit() to silence a gcc warning and ensure forked code will never

leave the cache-loop function.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@30397 b3059339-0415-0410-9bf9-f77b7e298cf2

stream/cache2.c

@@ -406,6 +406,8 @@ static void ThreadProc( void *s ){
 #ifdef PTHREAD_CACHE
   return NULL;
 #endif
+  // make sure forked code never leaves this function
+  exit(0);
 }
 
 int cache_stream_fill_buffer(stream_t *s){