http: avoid logging reconnect warning if stream was aborted

If the stream was aborted using the libavformat interrupt callback, we
don't want it to log the reconnect warning. (Exiting after logging this
warning worked well, so this is only for avoiding the ugly warning.)

libavformat/http.c

@@ -1452,6 +1452,9 @@ static int http_read_stream(URLContext *h, uint8_t *buf, int size)
         || (read_ret == AVERROR_EOF && s->reconnect_at_eof && (!h->is_streamed || s->reconnect_streamed))) {
         uint64_t target = h->is_streamed ? 0 : s->off;
 
+        if (read_ret == AVERROR_EXIT)
+            return read_ret;
+
         if (reconnect_delay > s->reconnect_delay_max)
             return AVERROR(EIO);