private static String getSpaces(int numSpaces) {
		if (numSpaces <= 0) {
			return "";
		}
		StringBuffer buf = new StringBuffer(numSpaces);
		for (int i = 0; i < numSpaces; i++) {
			buf.append(" ");
		}
		return buf.toString();
	}
Gets a string that indicates the references from a code unit.
This can contain new line characters.
<br>Note: Data currently only indicates references on the minimum address.
@param cu the code unit
@return info about the code unit's references.
Ghidra/Features/Base/src/main/java/ghidra/app/merge/listing/CodeUnitDetails.java