I do not think that information is correct.
Unfortunately, it is correct; Apple doesn't reveal this information. There is a reference on their web site to supporting TLS v1.0 on Snow Leopard Server, which seems to imply that there is no direct support for TLS on a per-application basis for normal users.
There's nothing about it in System Profiler, and if you were to search your system for "TLS", you may find an extension named EAP-TLS and/or EAP-TLS.Info.plist, which tells you absolutely nothing.