Deduplicate script

Change-Id: I2ab3ecdc2efd7478750bb32f2863211489132eda
diff --git a/day01-image/template.json b/day01-image/template.json
index f2f4d41..4488a50 100644
--- a/day01-image/template.json
+++ b/day01-image/template.json
@@ -55,6 +55,7 @@
       "type": "shell",
       "execute_command": "chmod +x {{ .Path }}; {{ .Vars }} {{ .Path }}",
       "scripts": [
+        "scripts/base_set_hostname.sh",
         "scripts/base.sh",
         "scripts/motd.sh",
         "scripts/network.sh",