增加DataFrame打印宽度

不设置前：

             CVE    Date reported   References  Severity  \0  CVE-2017-0634  Google internal  A-32511682*  Moderate     Updated Google devices  0        Pixel, Pixel XL

设置：

pd.set_option('display.width', 1000)

之后：

         CVE    Date reported   References  Severity Updated Google devices0  CVE-2017-0634  Google internal  A-32511682*  Moderate        Pixel, Pixel XL