[OpenSIPS-Devel] [OpenSIPS/opensips] 21547d: sipmsgops: Fix sipmsg_validate() regression

[Liviu Chircu]

  Branch: refs/heads/master
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 21547d571d0ceaf19e5892b684a27c80e95987c9
      https://github.com/OpenSIPS/opensips/commit/21547d571d0ceaf19e5892b684a27c80e95987c9
  Author: Liviu Chircu <liviu at opensips.org>
  Date:   2021-07-05 (Mon, 05 Jul 2021)

  Changed paths:
    M modules/sipmsgops/sipmsgops.c
    M ut.h

  Log Message:
  -----------
  sipmsgops: Fix sipmsg_validate() regression

Commit b03cb41a31 introduced a regression while attempting to simplify
some character-checking macros.

Reported by Alexey Vasilyev
Fixes #2563