kdig: print HTTP instead of HTTPS

src/utils/common/https.c

-/*  Copyright (C) 2020 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+/*  Copyright (C) 2021 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -564,7 +564,7 @@ void print_https(const https_ctx_t *ctx)
 	if (!ctx || !ctx->authority || !ctx->path) {
 		return;
 	}
-	printf(";; HTTPS session (HTTP/2-%s)-(%s%s)-(status: %lu)\n",
+	printf(";; HTTP session (HTTP/2-%s)-(%s%s)-(status: %lu)\n",
 	       ctx->params.method == POST ? "POST" : "GET", ctx->authority,
 	       ctx->path, ctx->status);
 }