move "SENT: ..." debug statement to the place where it belongs

This also adds a "QUEUED: ..." debug statement at verbosity level 2.

Signed-off-by: Steffen Jaeckel <jaeckel-floss@eyet-services.de>

src/conn.c

@@ -1477,7 +1477,7 @@ static int _send_raw(xmpp_conn_t *conn, char *data, size_t len)
         conn->send_queue_tail = item;
     }
     conn->send_queue_len++;
-    xmpp_debug(conn->ctx, "conn", "SENT: %s", data);
+    xmpp_debug_verbose(2, conn->ctx, "conn", "QUEUED: %s", data);
     xmpp_debug_verbose(1, conn->ctx, "conn", "Added queue element: %p", item);
     return XMPP_EOK;
 }

src/event.c

@@ -134,6 +134,7 @@ void xmpp_run_once(xmpp_ctx_t *ctx, unsigned long timeout)
                 break; /* partial write or an error */
 
             /* all data for this queue item written, delete and move on */
+            xmpp_debug(conn->ctx, "conn", "SENT: %s", sq->data);
             xmpp_debug_verbose(1, ctx, "xmpp",
                                "Finished writing queue element: %p.", sq);
             xmpp_free(ctx, sq->data);