src/main/java/com/github/ricksbrown/cowsay/plugin/CowExecutor.java
private void buildFaceArgs(final List<String> args) {
		if (mode != null && CowFace.isKnownMode(mode)) {
			args.add(flagify(mode));
		} else {
			if (eyes != null) {
				args.add(flagify(CowsayCli.Opt.EYES.toString()));
				args.add(eyes);
			}
			if (tongue != null) {
				args.add(flagify(CowsayCli.Opt.TONGUE.toString()));
				args.add(tongue);
			}
			if (cowfile != null) {
				args.add(flagify(CowsayCli.Opt.COWFILE.toString()));
				args.add(cowfile);
			}
		}
	}
private void buildFaceArgs(final List<String> args) {
		if (mode != null && CowFace.isKnownMode(mode)) {
			args.add(flagify(mode));
		} else {
			if (eyes != null) {
				args.add(flagify(CowsayCli.Opt.EYES.toString()));
				args.add(eyes);
			}
			if (tongue != null) {
				args.add(flagify(CowsayCli.Opt.TONGUE.toString()));
				args.add(tongue);
			}
			if (cowfile != null) {
				args.add(flagify(CowsayCli.Opt.COWFILE.toString()));
				args.add(cowfile);
			}
		}
	}
Face specific flags, either a face mode or face customizations.
@param args The arg line to add to.