File

luacheckrc: Replace deprecated module:once with :on_ready So that :once is warned about properly. module:once was only added in trunk so it shouldn't have gotten very far yet.

This module blocks configured queries that change server state.

E.g. to make vCard storage read-only:

``` lua
readonly_stores = {
	vcard = { "vcard-temp", "vCard" };
}
```