Merge "res_pjsip_refer: Prevent unload except during shutdown."
authorJoshua Colp <jcolp@digium.com>
Thu, 19 Oct 2017 12:24:59 +0000 (07:24 -0500)
committerGerrit Code Review <gerrit2@gerrit.digium.api>
Thu, 19 Oct 2017 12:24:59 +0000 (07:24 -0500)

Trivial merge