[OpenSIPS-Devel] [OpenSIPS/opensips] 9b8b28: Avoid errors on "$rU = <NULL expression>; " statements

[Liviu Chircu]

  Branch: refs/heads/2.2
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 9b8b28c70c265b50b9a559f444785819621d461e
      https://github.com/OpenSIPS/opensips/commit/9b8b28c70c265b50b9a559f444785819621d461e
  Author: Liviu Chircu <liviu at opensips.org>
  Date:   2019-01-30 (Wed, 30 Jan 2019)

  Changed paths:
    M pvar.c

  Log Message:
  -----------
  Avoid errors on "$rU = <NULL expression>;" statements

(cherry picked from commit 94d2f05940e7078d1acf485ea848eb9e5f34b00f)