[OpenSIPS-Devel] [OpenSIPS/opensips] 4c0c37: fix: some sh(busybox) do not support syntax of `$(...

[wxf]

  Branch: refs/heads/2.1
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 4c0c3714f413bc369e179a771689e8fe00f1f42c
      https://github.com/OpenSIPS/opensips/commit/4c0c3714f413bc369e179a771689e8fe00f1f42c
  Author: wxf <xiaofeng.wang at bqvision.com>
  Date:   2015-10-20 (Tue, 20 Oct 2015)

  Changed paths:
    M scripts/opensipsctl

  Log Message:
  -----------
  fix: some sh(busybox) do not support syntax of `$(< file)'

(cherry picked from commit ffb25541b6bf4ee841072787f2a09c06c4885ab1)