private String indent(int n) {
		StringBuilder buffy = new StringBuilder();
		for (int i = 0; i < n; i++) {
			buffy.append(' ');
		}
		return buffy.toString();
	}
Prints the hierarchy of nodes represented by this node

@return a string representation of the hierarchy of nodes represented by this node.
Ghidra/Framework/Docking/src/main/java/docking/Node.java