Actually, not in the API documentation until the date of my answer ... You can configure it like this:
jQuery(...).autocomplete({ messages : { noResults : 'No results found.', results : function(count) { return count + (count > 1 ? ' results' : ' result ') + ' found'; } }, });
NOTE. As the actimel user commented, the setup is fine, but does not hide it, since it is part of the accessibility function (for example, blind users).
source share