add undocumented interval change to docs

diff --git a/src/lua/lua_config.c b/src/lua/lua_config.c
index 9a2d2f55d506f565892b781a171d72723256d83e..34bba5836268a6cee3895eebf34bac4197818015 100644 (file)
--- a/src/lua/lua_config.c
+++ b/src/lua/lua_config.c
@@ -578,7 +578,7 @@ rspamd_config:add_on_load(function(cfg, ev_base)
        rspamd_config:add_periodic(ev_base, 1.0, function(cfg, ev_base)
                local logger = require "rspamd_logger"
                logger.infox(cfg, "periodic function")
-               return true -- if return false, then the periodic event is removed
+               return true -- if return numeric, a new interval is set. if return false, then the periodic event is removed
        end)
 end)
  */