tests: pad out localhost-*

tests/ansible/hosts/localhost.hosts

@@ -7,8 +7,31 @@ localhost
 
 # This is only used for manual testing.
 [localhost-x10]
-localhost-[01:10]
+localhost-[001:010]
+
+[localhost-x20]
+localhost-[001:020]
+
+[localhost-x30]
+localhost-[001:030]
+
+[localhost-x40]
+localhost-[001:040]
+
+[localhost-x50]
+localhost-[001:050]
+
+[localhost-x60]
+localhost-[001:060]
+
+[localhost-x70]
+localhost-[001:070]
+
+[localhost-x80]
+localhost-[001:080]
+
+[localhost-x90]
+localhost-[001:090]
 
-# This is only used for manual testing.
 [localhost-x100]
 localhost-[001:100]