# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1483384237 -3600
# Node ID 0b3c7b03cb90948e10e7587381553f6654bdd581
# Parent  06e3b0ef8bdfcad9f76e94d7850161e89db88715
mod_mam_muc: Use is_stanza from util.stanza if available

diff -r 06e3b0ef8bdf -r 0b3c7b03cb90 mod_mam_muc/mod_mam_muc.lua
--- a/mod_mam_muc/mod_mam_muc.lua	Mon Dec 26 15:43:32 2016 +0100
+++ b/mod_mam_muc/mod_mam_muc.lua	Mon Jan 02 20:10:37 2017 +0100
@@ -34,7 +34,7 @@
 	end
 
 local getmetatable = getmetatable;
-local function is_stanza(x)
+local is_stanza = st.is_stanza or function(x)
 	return getmetatable(x) == st.stanza_mt;
 end