Fix ff_random_get_seed() prototype

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@17970 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavutil/random_seed.h

@@ -26,6 +26,6 @@
 /**
  * Gets a seed to use in conjuction with random functions.
  */
-uint32_t ff_random_get_seed();
+uint32_t ff_random_get_seed(void);
 
 #endif /* AVUTIL_RANDOM_SEED_H */