Displaying LilyPond's data directory

In Frescobaldi, you can install LilyPond while editing the Settings options. However, it is not always clear what directory LilyPond is installed in. Using the following code will display LilyPond's data directory.

\version "2.24.4"
#(display
  (string-append "\nThe LilyPond data directory is located at: "
                 (ly:get-option 'datadir)))

(Thanks to Mark Knoop for this code.)