refs #6444 export global status variables on mariadb

git-svn-id: file:///svn/mysql/tokudb-engine/tokudb-engine@55027 c7de825b-a66e-492c-adef-691d508d4ae1

storage/tokudb/hatoku_hton.cc

@@ -2416,7 +2416,7 @@ maria_declare_plugin(tokudb)
     tokudb_init_func,          /* plugin init */
     tokudb_done_func,          /* plugin deinit */
     TOKUDB_PLUGIN_VERSION,     /* 4.0.0 */
-    NULL,                      /* status variables */
+    toku_global_status_variables_export,  /* status variables */
     tokudb_system_variables,   /* system variables */
     TOKUDB_PLUGIN_VERSION_STR, /* string version */
     MariaDB_PLUGIN_MATURITY_STABLE /* maturity */