[OpenSIPS-Devel] [OpenSIPS/opensips] 3549f3: Fix printing of bind_address for first CALLEE leg

[Bogdan Andrei IANCU]

  Branch: refs/heads/master
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 3549f3c9c0027a40cd762da156cdcbfe4127f02e
      https://github.com/OpenSIPS/opensips/commit/3549f3c9c0027a40cd762da156cdcbfe4127f02e
  Author: Bogdan-Andrei Iancu <bogdan at opensips.org>
  Date:   2019-11-11 (Mon, 11 Nov 2019)

  Changed paths:
    M modules/dialog/dialog.c

  Log Message:
  -----------
  Fix printing of bind_address for first CALLEE leg

If there was no reply yet on the given leg, the bind_address is NULL, so take care when printing it
Closes #1890

(cherry picked from commit 8df8aa13dcf0cbf9ff3b8c204479b21f2b513e09)