[openssl/openssl] f5f288: Fix small typo in X509v3_get_ext_by_NID() man page

[Tomas Mraz]

  Branch: refs/heads/master
  Home:   https://github.openssl.org/openssl/openssl
  Commit: f5f288bdba3d2ca6f2ad4b39225b42f06ef28638
      https://github.openssl.org/openssl/openssl/commit/f5f288bdba3d2ca6f2ad4b39225b42f06ef28638
  Author: EasySec <easy.sec at free.fr>
  Date:   2022-04-19 (Tue, 19 Apr 2022)

  Changed paths:
    M doc/man3/X509v3_get_ext_by_NID.pod

  Log Message:
  -----------
  Fix small typo in X509v3_get_ext_by_NID() man page

Reviewed-by: Matt Caswell <matt at openssl.org>
Reviewed-by: Kurt Roeckx <kurt at roeckx.be>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18124)