log name of mising field, not path

Kubernetes-commit: 180c312f31f5de372eb27b5a120d5a6ce94bc07c

pkg/explain/v2/templates/plaintext.tmpl

@@ -43,7 +43,7 @@ Takes dictionary as argument with keys:
             {{- with include "output" (set $ "schema" .) -}}
                 {{- . -}}
             {{- else -}}
-                error: field "{{$.FieldPath}}" does not exist
+                error: field "{{index $.FieldPath (sub (len $.FieldPath) 1)}}" does not exist
             {{- end -}}
             {{- break -}}
         {{- end -}}

pkg/explain/v2/templates/plaintext_test.go

@@ -336,7 +336,7 @@ func TestPlaintext(t *testing.T) {
 		},
 		{
 			// Shows that the typeguess puts Object tpye in title case
-			Name:        "ArrayUnknown",
+			Name:        "ObjectTitle",
 			Subtemplate: "typeGuess",
 			Context: map[string]any{
 				"schema": map[string]any{