examples: lang: Add missing folder

examples/lang/datetime2.mcl

@@ -12,3 +12,7 @@ file "/tmp/mgmt/datetime" {
 	state => $const.res.file.state.exists,
 	content => golang.template("Hello! It is now: {{ datetime_print .now }}\n\nload average: {{ .load }}\n", $st),
 }
+
+file "/tmp/mgmt/" {
+	state => $const.res.file.state.exists,
+}

examples/lang/datetime3.mcl

@@ -18,3 +18,7 @@ file "/tmp/mgmt/datetime" {
 	state => $const.res.file.state.exists,
 	content => golang.template("Now + 1 year is: {{ .year }} seconds, aka: {{ datetime_print .year }}\n\nload average: {{ .load }}\n\nvu: {{ .vumeter }}\n", $tmplvalues),
 }
+
+file "/tmp/mgmt/" {
+	state => $const.res.file.state.exists,
+}