Minor bugfix in a test (use correct IV lengths).

src/tests/aes.vtc

@@ -825,7 +825,7 @@ varnish v1 -vcl {
 		set resp.http.cbc-ciphertext
 		    = blobcode.encode(HEXLC,
 		                      cbc.encrypt(p1.get(),
-		                                 iv=gcrypt.random(STRONG, 8B)));
+		                                iv=gcrypt.random(STRONG, 16B)));
 		set resp.http.cbc-iv
 		    = blobcode.encode(HEXLC, gcrypt.random());
 		set resp.http.cbc-plaintext
@@ -844,6 +844,6 @@ client c1 {
 	expect resp.http.ctr-ctr ~ "^[[:xdigit:]]{32}$"
 	expect resp.http.ctr-plaintext == "000102030405060708090a0b0c0d0e0f"
 	expect resp.http.cbc-ciphertext ~ "^[[:xdigit:]]{32}$"
-	expect resp.http.cbc-iv ~ "^[[:xdigit:]]{16}$"
+	expect resp.http.cbc-iv ~ "^[[:xdigit:]]{32}$"
 	expect resp.http.cbc-plaintext == "000102030405060708090a0b0c0d0e0f"
 } -run