MINOR: http-ana: Properly set message flags from the start-line flags

CNT_LEN and TE_CHNK flags must be set on the message only when the
corresponding flag is set on the HTX start-line. Before, when the transfer
length was known XFER_LEN set), the HTTP_MSGF_TE_CHNK was the default. But
it is not appropriate. Now, it is only set if the message is chunked. Thus,
it is now possible to have a known transfer length without CNT_LEN or
TE_CHNK.

In addition, the BODYLESS flags may be set, independently on XFER_LEN one.
diff --git a/src/http_ana.c b/src/http_ana.c
index de99a5d..741ec56 100644
--- a/src/http_ana.c
+++ b/src/http_ana.c
@@ -149,7 +149,10 @@
 	if (sl->flags & HTX_SL_F_VER_11)
                 msg->flags |= HTTP_MSGF_VER_11;
 	msg->flags |= HTTP_MSGF_XFER_LEN;
-	msg->flags |= ((sl->flags & HTX_SL_F_CLEN) ? HTTP_MSGF_CNT_LEN : HTTP_MSGF_TE_CHNK);
+	if (sl->flags & HTX_SL_F_CLEN)
+		msg->flags |= HTTP_MSGF_CNT_LEN;
+	else if (sl->flags & HTX_SL_F_CHNK)
+		msg->flags |= HTTP_MSGF_TE_CHNK;
 	if (sl->flags & HTX_SL_F_BODYLESS)
 		msg->flags |= HTTP_MSGF_BODYLESS;
 
@@ -1537,10 +1540,13 @@
                 msg->flags |= HTTP_MSGF_VER_11;
 	if (sl->flags & HTX_SL_F_XFER_LEN) {
 		msg->flags |= HTTP_MSGF_XFER_LEN;
-		msg->flags |= ((sl->flags & HTX_SL_F_CLEN) ? HTTP_MSGF_CNT_LEN : HTTP_MSGF_TE_CHNK);
-		if (sl->flags & HTX_SL_F_BODYLESS)
-			msg->flags |= HTTP_MSGF_BODYLESS;
+		if (sl->flags & HTX_SL_F_CLEN)
+			msg->flags |= HTTP_MSGF_CNT_LEN;
+		else if (sl->flags & HTX_SL_F_CHNK)
+			msg->flags |= HTTP_MSGF_TE_CHNK;
 	}
+	if (sl->flags & HTX_SL_F_BODYLESS)
+		msg->flags |= HTTP_MSGF_BODYLESS;
 
 	n = txn->status / 100;
 	if (n < 1 || n > 5)