[OpenSIPS-Devel] [OpenSIPS/opensips] 13cbc6: Fix extracting TO hdr.

[Bogdan-Andrei Iancu]

  Branch: refs/heads/1.11
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 13cbc68d4b320b5395fa1e35d49e68fce55d3c57
      https://github.com/OpenSIPS/opensips/commit/13cbc68d4b320b5395fa1e35d49e68fce55d3c57
  Author: Bogdan-Andrei Iancu <bogdan at opensips.org>
  Date:   2016-03-18 (Fri, 18 Mar 2016)

  Changed paths:
    M modules/b2b_logic/logic.c

  Log Message:
  -----------
  Fix extracting TO hdr.

Do not add '@' if username is not present.
Reported by @DMOsipov on GITHUB.
Closes #818

(cherry picked from commit e74f6655ee735feb7e5f22298405172fb74e86c1)