md_rand: FAQ URL to use https and follow a redirect

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>

crypto/rand/md_rand.c

diff --git a/crypto/rand/md_rand.c b/crypto/rand/md_rand.c
index 7a7e16b..c7be278 100644
--- a/crypto/rand/md_rand.c
+++ b/crypto/rand/md_rand.c
@@ -596,7 +596,7 @@
     else {
         RANDerr(RAND_F_RAND_BYTES, RAND_R_PRNG_NOT_SEEDED);
         ERR_add_error_data(1, "You need to read the OpenSSL FAQ, "
-                           "http://www.openssl.org/support/faq.html");
+                           "https://www.openssl.org/docs/faq.html");
         return (0);
     }
  err: