'bar' shouldn't be a string in example

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Page: https://www.postgresql.org/docs/16/sql-alterforeigndatawrapper.html
Description:

Hi,

Re. this example:

ALTER FOREIGN DATA WRAPPER dbi OPTIONS (ADD foo '1', DROP 'bar');

I think "bar" is akin to "foo" and therefore should be similarly an option?
(i.e. not a string value)?

Many thanks

Tim