[openssl/openssl] 1737fb: APPS: remove spurious errors when certain config f...

[David von Oheimb]

  Branch: refs/heads/openssl-3.0
  Home:   https://github.com/openssl/openssl
  Commit: 1737fb8f455963b0956c81504a2bec4304bd902d
      https://github.com/openssl/openssl/commit/1737fb8f455963b0956c81504a2bec4304bd902d
  Author: Dr. David von Oheimb <David.von.Oheimb at siemens.com>
  Date:   2023-06-14 (Wed, 14 Jun 2023)

  Changed paths:
    M apps/ca.c
    M apps/cmp.c
    M apps/lib/apps.c
    M apps/req.c

  Log Message:
  -----------
  APPS: remove spurious errors when certain config file entries are not provided

This backports the functional essence of #20971.

Reviewed-by: Paul Dale <pauli at openssl.org>
Reviewed-by: Todd Short <todd.short at me.com>
Reviewed-by: David von Oheimb <david.von.oheimb at siemens.com>
(Merged from https://github.com/openssl/openssl/pull/21050)