[OpenSIPS-Devel] [OpenSIPS/opensips] 8054db: Compatibility fix for add_body() with new body.

[Bogdan-Andrei Iancu]

  Branch: refs/heads/master
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 8054dbfb4d0c5c621d35db6bc886da41d3a05294
      https://github.com/OpenSIPS/opensips/commit/8054dbfb4d0c5c621d35db6bc886da41d3a05294
  Author: Bogdan-Andrei Iancu <bogdan at opensips.org>
  Date:   2014-10-15 (Wed, 15 Oct 2014)

  Changed paths:
    M msg_translator.c

  Log Message:
  -----------
  Compatibility fix for add_body() with new body.

When computing the new content-len, accept the case when there is no pre-existing body and a newly added body.
Reported by Antonis Psaras via LinkedIn