【修改】流程任务-审批页面：审批意见增加必填验证；

Learun.Framework.Ultimate V7/Learun.Application.Web/Areas/LR_NewWorkFlow/Views/NWFProcess/NWFContainerForm.cshtml

@@ -75,7 +75,7 @@
             </div>
             <div class="col-xs-12 lr-form-item flow-item" style="padding:0;" id="flow-des">
                 <div class="lr-form-item-title" style="position:relative;width:100%;text-align:left;">审批意见</div>
-                <textarea id="des" class="form-control" style="height: 120px;"></textarea>
+                <textarea id="des" class="form-control" style="height: 120px;" isvalid="yes" checkexpession="NotNull" ></textarea>
             </div>
             <div class="col-xs-12 flow-btn">
                 <a id="release" class="btn btn-success">创建流程</a>