s.addremove = false
s.anonymous = true
-o = s:option(DynamicList, "extra_setting", translate("Settings list"),
+o = s:option(DynamicList, "extra_settings", translate("Settings list"),
translate("List of extra settings. Format: option=value, eg. <code>netrc-path=/tmp/.netrc</code>."))
o.placeholder = "option=value"