Move unaltered rtsp.c comments to the header file.

Originally committed as revision 8256 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/rtsp.c

@@ -817,7 +817,6 @@ static void rtsp_send_cmd(AVFormatContext *s,
         *content_ptr = content;
 }
 
-/* useful for modules: set RTSP callback function */
 
 void rtsp_set_callback(FFRTSPCallback *rtsp_cb)
 {

libavformat/rtsp.h

@@ -76,6 +76,7 @@ typedef int FFRTSPCallback(enum RTSPCallbackAction action,
                            char *buf, int buf_size,
                            void *arg);
 
+/* useful for modules: set RTSP callback function */
 void rtsp_set_callback(FFRTSPCallback *rtsp_cb);
 
 int rtsp_init(void);