Method toHexString

fdbserver/VersionedBTree.actor.cpp:4178–4178

	std::string toString() const { return format("%s%s", a.toString().c_str(), b.toString().c_str()); }

	std::string toHexString() const { return format("%s%s", a.toHexString().c_str(), b.toHexString().c_str()); }

	struct const_iterator {
		const uint8_t* ptr;