public boolean hasNonZeroData() {
		for (OmfData block : dataBlocks) {
			if (!block.isAllZeroes()) {
				return true;
			}
		}
		return false;
	}
@return true if this block uses filler other than zero bytes
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/omf/omf/OmfSegmentHeader.java