[OpenSIPS-Devel] [OpenSIPS/opensips] f67f8d: Avoid errors on "$rU = <NULL expression>; " statements

[Liviu Chircu]

  Branch: refs/heads/2.4
  Home:   https://github.com/OpenSIPS/opensips
  Commit: f67f8d6cf4545a9150236a40963d7bf67d4000f3
      https://github.com/OpenSIPS/opensips/commit/f67f8d6cf4545a9150236a40963d7bf67d4000f3
  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)