void printStats() {
		Msg.info(this, "RecoveryMgr stats:");
		for (int i = 0; i < 2; i++) {
			String lastSnapshot = snapshotIndex == i ? "*" : " ";
			Msg.info(this, "  " + lastSnapshot + snapshotFiles[i]);
			Msg.info(this, "     buffers saved: " + buffersSaved[i]);
			Msg.info(this, "     buffers unchanged: " + buffersIgnored[i]);
			Msg.info(this, "     buffers removed: " + buffersRemoved[i]);
		}
	}
Write a modified buffer corresponding to the specified BufferNode
to the current open snapshot file.  The following BufferNode fields
are utilized which should not be modified concurrent with this
method invocation: 'id' and  'snapshotTaken'.
@param buf
@param node
@throws IOException
Ghidra/Framework/DB/src/main/java/db/buffers/RecoveryMgr.java