Possible typo in rest_validate_enum() function

[Hareesh Pillai]

There seems to be a typo in the return statement of rest_validate_enum() function. See ​L1965.

Instead of %1$s is not one of %2$l, it should be %1$s is not one of %2$s.

Introduced in #51911.

[SergeyBiryukov]

Thanks for the ticket!

The %2$l placeholder is not a typo, it's meant for outputting localized lists of items. See the ​wp_sprintf_l() function for more details, attached via a filter to ​wp_sprintf().

The $encoded_enum_values variable there is an array, so %2$s won't work as expected.