[autocomplete] How to add a string to the end of the suggestion list?

[autocomplete] How to add a string to the end of the suggestion list?


My autocomplete text box is set up to show 5 suggestions. I'd like to
add a string (that is NOT selectable) to show the total hits at the
end of the suggestion list. For example:
Suggestion 1
Suggestion 2
Suggestion 3
Suggestion 4
Suggestion 5
Total hits: 2,174 <== NOT selectable.
What is the easiest way to add the "Total hits" string to the end?
Thank you.