Make -T ssl less verbose?

When you run tracing on "ssl" (e.g. -T ssl), it produces a lot of output by dumping all the read buffers. For large documents, that can be a lot of output. I'd prefer not to see these read() dumbs, at least not for "ssl". We could make it some other debug diagnostics tag, but would have to be careful that it's not included as part of just "ssl".