Add return statement, fixes the warning:

test2.c:72: warning: control reaches end of non-void function


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@26532 b3059339-0415-0410-9bf9-f77b7e298cf2

mp3lib/test2.c

@@ -68,5 +68,5 @@ int main(int argc,char* argv[]){
   }
   
   fclose(mp3file);
-  
+  return 0;
 }