dump_bplustree_node
dump_bplustree_node(node, header, volume);
remove_debugger_command("bfs_btree_node", dump_bplustree_node);
add_debugger_command("bfs_btree_node", dump_bplustree_node,
extern void dump_bplustree_node(const bplustree_node *node,
dump_bplustree_node(node, header, &disk);
dump_bplustree_node(node,fHeader);
extern void dump_bplustree_node(const bplustree_node* node,
dump_bplustree_node(node, header, gVolume);