[openssl/openssl] 59d8a3: quic: documentation and demo nits

[James Muir]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: 59d8a338edca98e5bb077a2a364d82e53e7cce77
      https://github.com/openssl/openssl/commit/59d8a338edca98e5bb077a2a364d82e53e7cce77
  Author: James Muir <james at openssl.org>
  Date:   2023-10-25 (Wed, 25 Oct 2023)

  Changed paths:
    M demos/guide/quic-client-block.c
    M demos/guide/quic-multi-stream.c
    M demos/guide/tls-client-block.c
    M doc/man7/ossl-guide-quic-multi-stream.pod

  Log Message:
  -----------
  quic: documentation and demo nits

The code for the quic demos (from the openssl guide) is presented as
modifications of tls-client-block.c.  Make it so that the quic code
better matches the tls code (drop unneeded assignments to "ret", use
the same comment on SSL_connect(), add the same printf() statement).

Also fix some minor typos.

Reviewed-by: Paul Dale <pauli at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
Reviewed-by: Hugo Landau <hlandau at openssl.org>
Reviewed-by: Matt Caswell <matt at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22483)