N1QL: Incomplete Error Msg displayed when quotes not given for a particular key in USE KEYS Array

The following query has a key not specified in double quotes in USE KEYS array:

cbq> select * from `beer-sample` USE KEYS ["21st_amendment_brewery_cafe",512_brewing_company-512_bruin];

{
"requestID": "1396ec2b-07ff-4816-82df-515401d85e13",
"errors": [

{ "code": 3000, "msg": "syntax error - at _brewing_company" }

],
"status": "fatal",
"metrics":

{ "elapsedTime": "816.536µs", "executionTime": "764.707µs", "resultCount": 0, "resultSize": 0, "errorCount": 1 }

}

For a smaller array of use keys the error message might be understood, but if we have a bigger collection of similar keys , then one needs to know the exact error message.
In above scenario, error message should be:
"msg": "syntax error - 512_at _brewing_company"