Gets a locale value and displays the name in a manner
that is appropriate to a specific locale. By default,
gets the current locale in the current locale's language.
getLocaleDisplayName()
→ returns string
writeOutput(getLocaleDisplayName());
writeOutput(' → ');
setLocale('de_ch');
writeOutput(getLocaleDisplayName());
Expected Result: English (United States) → Deutsch (Schweiz)