Both the i18n and Less caches fall back to wfTempDir(), but some
others don't, so we can't make any definitive statement about what
happens when this is set to false.
Change-Id: I72e8116e9e1a7ec251db555d820fc0684c8a33b3
/**
* Directory for caching data in the local filesystem. Should not be accessible
- * from the web. Set this to false to not use any local caches.
+ * from the web.
*
* Note: if multiple wikis share the same localisation cache directory, they
* must all have the same set of extensions. You can set a directory just for