8311069 adtrustinstance: write the conf as a string

1 file Authored by stlaz 2 years ago , Committed by mbasti 2 years ago ,
    adtrustinstance: write the conf as a string
    
    Since ipautil.template_file() returns a string, we should not try
    to write it as bytes.
    
    https://pagure.io/freeipa/issue/4985
    
    Reviewed-By: Martin Basti <mbasti@redhat.com>