return false 
    } 
  } 
 
  # 
  # NOTE: This procedure attempts to verify the OpenPGP signature file that 
  #       is associated with the specified file.  The forcePgp parameter is 
  #       used to force verification attempts to be performed even when the 
  #       file does not appear to be an OpenPGP signature file. 
  # NOTE: This procedure attempts to verify the specified OpenPGP signature 
  #       file.  If the forcePgp parameter is non-zero verification will be 
  #       attempted even when the specified file does not appear to be an 
  #       OpenPGP signature file.  This procedure may raise script errors. 
  # 
  proc maybeVerifyOpenPgpSignature { fileName forcePgp } { 
    # 
    # NOTE: Is this temporary package file actually just an OpenPGP 
    #       signature file?  If so, skip it.