Fix cmd document pull with help test

Previously it was not executed due to typo.

Change-Id: I91e166ded37e818ae1836cc33295579af068bd53
Signed-off-by: Ruslan Aliev <raliev@mirantis.com>

cmd/document/document_test.go

@@ -36,7 +36,7 @@ func TestDocument(t *testing.T) {
 		{
 			Name:    "document-pull-with-help",
 			CmdLine: "-h",
-			Cmd:     document.NewPluginCommand(),
+			Cmd:     document.NewPullCommand(nil),
 		},
 	}
 	for _, tt := range tests {

cmd/document/testdata/TestDocumentGoldenOutput/document-pull-with-help.golden

@@ -1,37 +1,7 @@
-This command is meant to be used as a kustomize exec plugin.
-
-The command reads the configuration file CONFIG passed as a first argument and
-determines a particular plugin to execute. Additional arguments may be passed
-to this command and can be used by the particular plugin.
-
-CONFIG must be a structured kubernetes manifest (i.e. resource) and must have
-'apiVersion' and 'kind' keys. If the appropriate plugin was not found, the
-command returns an error.
+Pulls documents from remote git repository
 
 Usage:
-  plugin CONFIG [ARGS] [flags]
-
-Examples:
-
-# Perform a replacement on a deployment. Prior to running this command,
-# the file '/tmp/replacement.yaml' should be created as follows:
----
-apiVersion: airshipit.org/v1alpha1
-kind: ReplacementTransformer
-metadata:
-  name: notImportantHere
-replacements:
-- source:
-    value: nginx:newtag
-  target:
-    objref:
-      kind: Deployment
-    fieldrefs:
-    - spec.template.spec.containers[name=nginx-latest].image
-
-# The replacement can then be performed. Output defaults to stdout.
-airshipctl document plugin /tmp/replacement.yaml
-
+  pull [flags]
 
 Flags:
-  -h, --help   help for plugin
+  -h, --help   help for pull