[openssl/openssl] e3ce39: Clarify the EVP_PKEY_decrypt manual page

[Tomáš Mráz]

  Branch: refs/heads/openssl-3.0
  Home:   https://github.com/openssl/openssl
  Commit: e3ce39ab3441fe6603f8740952af8fe94d40abf3
      https://github.com/openssl/openssl/commit/e3ce39ab3441fe6603f8740952af8fe94d40abf3
  Author: Tomas Mraz <tomas at openssl.org>
  Date:   2022-12-02 (Fri, 02 Dec 2022)

  Changed paths:
    M doc/man3/EVP_PKEY_decrypt.pod

  Log Message:
  -----------
  Clarify the EVP_PKEY_decrypt manual page

Fixes #19790

Reviewed-by: Hugo Landau <hlandau at openssl.org>
Reviewed-by: Matt Caswell <matt at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19792)

(cherry picked from commit 8f48a978e5cce483eadfd0df20e34480f205511c)