This method changed in Globalize version 6.0.1 [1], which we're using since
commit 6072372c9d.
We were getting a deprecation warning in Ruby 2.7:
```
config/initializers/globalize.rb:8: warning: Using the last argument as
keyword parameters is deprecated; maybe ** should be added to the call
```
So we're using the `(...)` arguments syntax to make it compatible with
Ruby 3.0, just like Globalize does when using Ruby 2.7.
[1] See pull request 778 in the globalize/globalize GitHub repo.