Fix doxy comments missing one '*'.

Originally committed as revision 16473 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/rtsp.h

@@ -76,9 +76,9 @@ enum RTSPClientState {
 };
 
 enum RTSPServerType {
-    RTSP_SERVER_RTP,  /*< Standard-compliant RTP-server */
-    RTSP_SERVER_REAL, /*< Realmedia-style server */
-    RTSP_SERVER_WMS,  /*< Windows Media server */
+    RTSP_SERVER_RTP,  /**< Standard-compliant RTP-server */
+    RTSP_SERVER_REAL, /**< Realmedia-style server */
+    RTSP_SERVER_WMS,  /**< Windows Media server */
     RTSP_SERVER_LAST
 };