message: Fix: core util `objectToErrorString` method trim whitespace
diff: @@ -267,10 +267,9 @@ export const bigNumber = (value: number | string | BN): BN => {
  * @return {[type]} The string containing the object's key (value) pairs
  */
  export const objectToErrorString = (object: Object = {}): string =>
  - Object.keys(object).reduce(
  - (allArgs, key) => `${allArgs}${key} (${String(object[key])}), `,
  - '',
  - );
  + Object.keys(object)
  + .reduce((allArgs, key) => `${allArgs}${key} (${String(object[key])}), `, '')
  + .trim();
  /**
  * Validate an (array) sequence of validation assertions (objects that are to be
  