Extension:Validator / typo

Validator-list-error-accepts-only-omitted (“One or more values for parameter $1 are invalid. It only accepts {{PLURAL:$3|this value|these values}}: $2 (and $4 omitted {{PLURAL:$4|value|values}}).”): "One or more values for parameter $1 are invalid. It only accepts these values: $2. (and $4 omitted values)." → "One or more values for parameter $1 are invalid. It only accepts these values: $2 (and $4 omitted values)."

 Fixed.

^{Thank you!}