[OpenSIPS-Devel] [OpenSIPS/opensips] c8347e: Fix build on CentOS 6.x

[Liviu Chircu]

  Branch: refs/heads/3.0
  Home:   https://github.com/OpenSIPS/opensips
  Commit: c8347ec1427502ab6c47e6c013899ec61edbc962
      https://github.com/OpenSIPS/opensips/commit/c8347ec1427502ab6c47e6c013899ec61edbc962
  Author: Liviu Chircu <liviu at opensips.org>
  Date:   2019-05-06 (Mon, 06 May 2019)

  Changed paths:
    M cfg_pp.c

  Log Message:
  -----------
  Fix build on CentOS 6.x

Reported by Nick Altmann

(cherry picked from commit f06f948ded2c197db314e6c8a4413bc58013cfce)