Could not use regular expressions in client-local.cfg [name] tag

Is it possible to use regular expression in client-local.cfg to specify hostname(s),  as I could do so in hobbit-clients.cfg?      I tried the same regular expression as in hobbit-client.cfg and it doesn't work.   Tried on few servers without regular expression on hostnames and it worked.
     Please help as I have to configure clientt-local.cfg for hundreds of servers :(
        Thanks
  Ram

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