memcached server 1.4.31 default in 123.08stable

https://community.centminmod.com/posts/35211/

centmin.sh

@@ -403,7 +403,7 @@ PCRE_VERSION='8.38'          # NO longer used/ignored
 IMAGICKPHP_VER='3.4.3RC1'   # PHP extension for imagick
 MEMCACHED_INSTALL=y          # Install Memcached
 LIBEVENT_VERSION='2.0.22'    # Use this version of Libevent
-MEMCACHED_VERSION='1.4.30'    # Use this version of Memcached server
+MEMCACHED_VERSION='1.4.31'    # Use this version of Memcached server
 MEMCACHE_VERSION='3.0.8'     # Use this version of Memcache
 MEMCACHEDPHP_VER='2.2.0'    # Memcached PHP extension not server
 LIBMEMCACHED_YUM='y'        # switch to YUM install instead of source compile