protected String stringifyLineLabel(long label) {
		return "<" + label + ">";
	}
Covert the given line label to a string as it should be conventionally displayed.

@param label the label number
@return the display string, e.g., {@code <L1>}
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/util/pcode/AbstractAppender.java