private static String zeropad(String s, int len) {
		if (s == null) {
			s = "";
		}
		StringBuffer buffer = new StringBuffer(s);
		int zerosNeeded = len - s.length();
		for (int i = 0; i < zerosNeeded; ++i) {
			buffer.insert(0, '0');
		}
		return buffer.toString();
	}
Returns the repeatable comment at the specified address.  If you want the raw text,
then you must call {@link #getRepeatableComment(Address)}.  This method returns the text as
seen in the display.

@param address the address to get the comment
@return the repeatable comment at the specified address or null if one does not exist
@see #getRepeatableComment(Address)
Ghidra/Features/Base/src/main/java/ghidra/app/script/GhidraScript.java