Example not producing shown output

PG Doc comments form <[email protected]> Mon, 25 Nov 2019 12:05:17 +0000
Newsgroups gmane.comp.db.postgresql.devel.documentation
Message-ID <[email protected]>
The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/12/functions-textsearch.html
Description:

Page: https://www.postgresql.org/docs/12/functions-textsearch.html

Examples should have specified 'english'.

Instead:
   to_tsvector('fat cats ate rats') @@ to_tsquery('cat & rat')

which returns fale on my own blank installation of Postgre (Serbian locale
Windows OS) instead of true:
   to_tsvector('english', 'fat cats ate rats') @@ to_tsquery('cat & rat')