[OpenSIPS-Devel] [OpenSIPS/opensips] f9e686: usrloc: Improve E_UL_CONTACT_REFRESH docs

[Liviu Chircu]

  Branch: refs/heads/3.1
  Home:   https://github.com/OpenSIPS/opensips
  Commit: f9e68649b5bdb3379826d0a9e976b7dda200a0bb
      https://github.com/OpenSIPS/opensips/commit/f9e68649b5bdb3379826d0a9e976b7dda200a0bb
  Author: Liviu Chircu <liviu at opensips.org>
  Date:   2020-11-02 (Mon, 02 Nov 2020)

  Changed paths:
    M modules/usrloc/doc/usrloc_admin.xml

  Log Message:
  -----------
  usrloc: Improve E_UL_CONTACT_REFRESH docs

This event will not be raised for non-RFC 8599 contacts.

(cherry picked from commit 7ad6af074d1e56b11fb245dd6a82f9c615749e09)