[openssl/openssl] fefeec: Cast the argument to unsigned char when calling is...

[Michael Baentsch]

  Branch: refs/heads/openssl-3.0
  Home:   https://github.com/openssl/openssl
  Commit: fefeecf00dd75a44dc33569f857aa741f59ccbb4
      https://github.com/openssl/openssl/commit/fefeecf00dd75a44dc33569f857aa741f59ccbb4
  Author: Michael Baentsch <57787676+baentsch at users.noreply.github.com>
  Date:   2023-06-09 (Fri, 09 Jun 2023)

  Changed paths:
    M apps/cmp.c
    M apps/lib/apps.c
    M apps/req.c
    M test/evp_test.c
    M test/testutil/provider.c

  Log Message:
  -----------
  Cast the argument to unsigned char when calling isspace()

Reviewed-by: Matt Caswell <matt at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21151)

(cherry picked from commit 8a2e74d0536c91585fbe789e0ab7b06cab0289c2)