Alert Message content prints employee name within [ ]

Hello,

Alert Message content prints employee name within [ ] as below:

2024-8-23 [Name1]

2024-8-23 [Name2]…

The alert message definition has this Groovy expression:

${AlertUtils.loop('workers','<tr><td>${AlertUtils.addDays(AlertUtils.getSysdate(),30)}
</td><td>${workers.names.DisplayName}</td></tr>')} prints the person name within square brackets

Please suggest how to eliminate printing of the sqaure brackets [] and print only the names of the colleagues.

Regards,Balaji