public String getCacheExtension() {
		if (cacheExtension == null) {
			return null;
		}
		int i;
		for (i = 0; i < cacheExtension.length; i++) {
			if (cacheExtension[i] == 0) {
				break;
			}
		}
		return new String(cacheExtension, 0, i, StandardCharsets.US_ASCII);
	}
Gets the extension of this subCache, if it is known

@return The extension of this subCache, or null if it is not known
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/macho/dyld/DyldSubcacheEntry.java