Consistent formatting for sizeof(foo)

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4872)
diff --git a/test/bftest.c b/test/bftest.c
index 7ab3d51..5abb81d 100644
--- a/test/bftest.c
+++ b/test/bftest.c
@@ -356,7 +356,7 @@
     BF_set_key(&key, 16, cbc_key);
     memset(cbc_in, 0, sizeof(cbc_in));
     memset(cbc_out, 0, sizeof(cbc_out));
-    memcpy(iv, cbc_iv, sizeof iv);
+    memcpy(iv, cbc_iv, sizeof(iv));
     BF_cbc_encrypt((unsigned char *)cbc_data, cbc_out, len,
                    &key, iv, BF_ENCRYPT);
     if (!TEST_mem_eq(cbc_out, 32, cbc_ok, 32))