Update caddy.lua

luci-app-caddy/luasrc/model/cbi/caddy/caddy.lua

@@ -11,6 +11,15 @@ o = s:option(Flag, "enabled", translate("Enabled"))
 o.rmempty = false
 o.default = 0
 
+o = s:option(Button, "btnrm", translate("版本"))
+o.inputtitle = translate("检测更新")
+o.description = translate("点击按钮开始检测更新，上方状态栏显示")
+o.inputstyle = "apply"
+o:depends("enabled", "1")
+o.write = function()
+  os.execute("rm -rf /tmp/caddy*.tag /tmp/caddy*.newtag")
+end
+
 e=s:option(ListValue,"cmd",translate("启动方式"),
 	translate("自定义配置文件启动，若不懂参数请勿选择自定义"))
 e:value("默认")