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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
// appends a new line with computer id and signature
static S signWithComputerIDAndDate(S s) {
  S computerID = getComputerID();
  s = rtrim(s) + "\n\n" + "-" + computerID() + ", " + localDateWithMilliseconds() + " (" + localTimeZone().getDisplayName(false, SHORT) + ")";
  s = fromLines(toLines(s));
  S signature = s + "sig: " + getMySignatureForText(s);
  signature = fromLines(toLines(signature));
  ret signature;
}