修改日志tip太长的bug

src/page/log/index.vue

 <template>
-  <div class="main-page">
+  <div class="main-page log">
     <div class="main-page-header">
       <p class="title">日志管理</p>
       <el-form
@@ -230,3 +230,8 @@ export default {
   padding: 20px;
 }
 </style>
+<style>
+.el-tooltip__popper {
+  max-width: 500px;
+}
+</style>