Reduce size of missing field markers.

pkg/commands/build/testdata/testcase-generators-namespace/expected.yaml

@@ -1,12 +1,4 @@
 apiVersion: v1
-data:
-  altGreeting: Good Morning from default namespace!
-  enableRisky: "false"
-kind: ConfigMap
-metadata:
-  name: the-map-4959m5tm6c
----
-apiVersion: v1
 data:
   altGreeting: Good Morning from non-default namespace!
   enableRisky: "false"
@@ -17,11 +9,11 @@ metadata:
 ---
 apiVersion: v1
 data:
-  password.txt: dmVyeSRlY3JldA==
-kind: Secret
+  altGreeting: Good Morning from default namespace!
+  enableRisky: "false"
+kind: ConfigMap
 metadata:
-  name: the-secret-cfbmct72tb
-type: Opaque
+  name: the-map-4959m5tm6c
 ---
 apiVersion: v1
 data:
@@ -31,3 +23,11 @@ metadata:
   name: the-non-default-namespace-secret-255294gd9d
   namespace: non-default
 type: Opaque
+---
+apiVersion: v1
+data:
+  password.txt: dmVyeSRlY3JldA==
+kind: Secret
+metadata:
+  name: the-secret-cfbmct72tb
+type: Opaque