gpg: --gen-random code cleanup by using es_set_binary.

* g10/gpg.c (main): Replace setmode by es_set_binary and use only when
needed.
--

It is better to use our es_set_binary than to use a Windows specific
method which still worked but is fragile because estream might be
changed.  We now set binary only when needed.  Note that it does not
harm to call es_set_binary more often than needed.

g10/getkey.c

@@ -2707,7 +2707,7 @@ merge_selfsigs_main (ctrl_t ctrl, kbnode_t keyblock, int *r_revoked,
        * and there was no way to change it, so we start with the one
        * from the key packet.  We do not support v3 keys anymore but
        * we keep the code in case a future key versions introduces a
-       * hadr expire time again. */
+       * hard expire time again. */
       key_expire = pk->max_expiredate;
       key_expire_seen = 1;
     }

g10/gpg.c

@@ -5057,9 +5057,6 @@ main (int argc, char **argv)
               size_t nn;
 
               p = gcry_random_bytes (n, level);
-#ifdef HAVE_DOSISH_SYSTEM
-              setmode ( fileno(stdout), O_BINARY );
-#endif
               if (hexhack)
                 {
                   for (nn = 0; nn < n; nn++)
@@ -5077,6 +5074,7 @@ main (int argc, char **argv)
                 }
               else
                 {
+                  es_set_binary (es_stdout);
                   es_fwrite( p, n, 1, es_stdout );
                 }
               xfree(p);