Pull request #1939: 无JIRA任务 非新增值的单选下拉框水印不居中

Merge in VISUAL/fineui from ~WINDY/fui:master to master

* commit '7aec98bfad0b9c029a618e22da814aa3a8fd0776':
  无JIRA任务 非新增值的单选下拉框水印不居中

src/widget/singleselect/singleselect.combo.js

@@ -30,7 +30,7 @@ BI.SingleSelectCombo = BI.inherit(BI.Single, {
 
         this.trigger = BI.createWidget({
             type: "bi.single_select_trigger",
-            height: o.height,
+            height: o.height - 2,
             // adapter: this.popup,
             allowNoSelect: o.allowNoSelect,
             allowEdit: o.allowEdit,