src/errors.js
function wrongNumberOfArguments(ruleName, expected, actual, expr) {
  return createError(
      'Wrong number of arguments for rule ' + ruleName +
          ' (expected ' + expected + ', got ' + actual + ')',
      expr.source);
}
function wrongNumberOfArguments(ruleName, expected, actual, expr) {
  return createError(
      'Wrong number of arguments for rule ' + ruleName +
          ' (expected ' + expected + ', got ' + actual + ')',
      expr.source);
}
function wrongNumberOfArguments ( ruleName , expected , actual , expr ) { return createError ( 'Wrong number of arguments for rule ' + ruleName + ' (expected ' + expected + ', got ' + actual + ')' , expr . source ) ; }
Wrong number of arguments
Wrong number of arguments