protected boolean formatLabelInput(A appender, VarnodeTpl input0) {
		if (input0.getSpace().isConstSpace() &&
			input0.getOffset().getType() == ConstTpl.J_RELATIVE) {
			appender.appendLineLabelRef(input0.getOffset().getReal());
			return true;
		}
		return false;
	}
Try to format a local label (e.g., {@code instr_next})

@param appender the appender to receive the formatted text
@param input0 the relative jump varnode
@return true if the varnode was formatted, false if not
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/util/pcode/AbstractPcodeFormatter.java