[fix] typo in description of option in type definition file

Author: cruzelx

index.d.ts

@@ -65,7 +65,7 @@ declare namespace DailyRotateFile {
  options?: string | object;
 
  /**
- * A string representing the name of the name of the audit file. (default: './hash-audit.json')
+ * A string representing the name of the audit file. (default: './hash-audit.json')
  */
  auditFile?: string;