adding example runit-style service directory

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/examples/var_service/fw/conf/lo.ipconf b/examples/var_service/fw/conf/lo.ipconf
new file mode 100644
index 0000000..e6be5f0
--- /dev/null
+++ b/examples/var_service/fw/conf/lo.ipconf
@@ -0,0 +1,10 @@
+#!/bin/bash
+# Mostly redundant except when you need dns[]=your_static_dns_srv
+#
+let cfg=cfg+1
+if[$cfg]=lo
+ip[$cfg]=127.0.0.1
+ipmask[$cfg]=127.0.0.1/8
+gw[$cfg]=''
+net[$cfg]=''
+#dns[$cfg]=127.0.0.1