[openssl/openssl] 780e7b: Fixes wrong return type in BIO_do_connect man page.

[openssl-machine]

  Branch: refs/heads/openssl-3.0
  Home:   https://github.com/openssl/openssl
  Commit: 780e7b11a54904b13aa15c704bcf09df17d579b2
      https://github.com/openssl/openssl/commit/780e7b11a54904b13aa15c704bcf09df17d579b2
  Author: Thib <Thib at toto.com>
  Date:   2023-01-23 (Mon, 23 Jan 2023)

  Changed paths:
    M doc/man3/BIO_s_connect.pod

  Log Message:
  -----------
  Fixes wrong return type in BIO_do_connect man page.

Current man page indicates the function returns an int while it returns
a long.

Fixes #20096.

CLA: trivial

Reviewed-by: Matt Caswell <matt at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20097)

(cherry picked from commit 2bde260ac0e30da39f4453e972c461cd9d1342e0)