Zero-initialize the reply struct

The status_code field is read in the fail codepath, where it could be
read uninitialized earlier. Found by clang.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@22801 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/rtsp.c

@@ -1442,7 +1442,7 @@ int ff_rtsp_connect(AVFormatContext *s)
     char *option_list, *option, *filename;
     URLContext *rtsp_hd;
     int port, err, tcp_fd;
-    RTSPMessageHeader reply1, *reply = &reply1;
+    RTSPMessageHeader reply1 = {}, *reply = &reply1;
     int lower_transport_mask = 0;
     char real_challenge[64];
     struct sockaddr_storage peer;