[Minor] Allow to load config with no controller defined

src/libserver/cfg_utils.c

@@ -925,8 +925,6 @@ rspamd_config_post_load (struct rspamd_config *cfg,
 			msg_warn_config ("controller worker is unconfigured: learning,"
 					" periodic scripts, maps watching and many other"
 					" Rspamd features will be broken");
-
-			ret = FALSE;
 		}
 
 		ret = rspamd_symcache_validate (cfg->cache, cfg, FALSE) && ret;

test/functional/configs/proxy.conf

@@ -1,7 +1,10 @@
 options = {
-	filters = "spf"
+	filters = ["spf", "dkim", "regexp"]
+	url_tld = "${URL_TLD}"
 	pidfile = "${TMPDIR}/rspamd.pid"
+	lua_path = "${INSTALLROOT}/share/rspamd/lib/?.lua"
 	dns {
+		nameserver = ["8.8.8.8", "8.8.4.4"];
 		retransmits = 10;
 		timeout = 2s;
 	}