MINOR: fd: move .linger_risk into fdtab[].state

No need to keep this flag apart any more, let's merge it into the global
state. The CLI's output state was extended to 6 digits and the linger/cloned
flags moved inside the parenthesis.
diff --git a/src/proto_uxst.c b/src/proto_uxst.c
index 8156eb8..efa7af9 100644
--- a/src/proto_uxst.c
+++ b/src/proto_uxst.c
@@ -346,7 +346,7 @@
 		conn->flags |= CO_FL_SEND_PROXY;
 
 	conn_ctrl_init(conn);       /* registers the FD */
-	fdtab[fd].linger_risk = 0;  /* no need to disable lingering */
+	HA_ATOMIC_AND(&fdtab[fd].state, ~FD_LINGER_RISK);  /* no need to disable lingering */
 
 	if (conn->flags & CO_FL_WAIT_L4_CONN) {
 		fd_want_send(fd);