优化：调整异常页面提示文案

jodconverter-web/src/main/java/cn/keking/service/impl/OtherFilePreviewImpl.java

@@ -19,8 +19,7 @@ public class OtherFilePreviewImpl implements FilePreview {
     @Override
     public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
         model.addAttribute("fileType",fileAttribute.getSuffix());
-        model.addAttribute("msg", "系统还不支持该格式文件的在线预览，" +
-                "如有需要请按下方显示的邮箱地址联系系统维护人员");
+        model.addAttribute("msg", "系统还不支持该格式文件的在线预览");
         return "fileNotSupported";
     }
 }