fix:linting and typos

internal/commands/extension_package.go

@@ -39,7 +39,7 @@ func ExtensionPackage(logger logging.Logger, cfg config.Config, packager Extensi
 		Use:     "package <name> --config <config-path>",
 		Short:   "Package an extension in OCI format",
 		Args:    cobra.MatchAll(cobra.ExactArgs(1), cobra.OnlyValidArgs),
-		Example: "pack extension package /output/file.cnb --path /extracted/from/tgz/folder --format file\npack extension package registy/image-name --path  /extracted/from/tgz/folder --format image --publish",
+		Example: "pack extension package /output/file.cnb --path /extracted/from/tgz/folder --format file\npack extension package registry/image-name --path  /extracted/from/tgz/folder --format image --publish",
 		Long: "extension package allows users to package (an) extension(s) into OCI format, which can then to be hosted in " +
 			"image repositories or persisted on disk as a '.cnb' file." +
 			"Packaged extensions can be used as inputs to `pack build` (using the `--extension` flag), " +

internal/commands/extension_package_test.go

@@ -366,10 +366,3 @@ func withExtensionClientConfig(clientCfg config.Config) packageExtensionCommandO
 		config.clientConfig = clientCfg
 	}
 }
-
-func whereReadExtensionDescriptor(descriptor dist.ExtensionDescriptor, err error) func(*fakes.FakePackageConfigReader) {
-	return func(r *fakes.FakePackageConfigReader) {
-		r.ReadExtensionDescriptorReturn = descriptor
-		r.ReadBuildpackDescriptorReturnError = err
-	}
-}

pkg/dist/extension_descriptor_test.go

@@ -87,5 +87,4 @@ func testExtensionDescriptor(t *testing.T, when spec.G, it spec.S) {
 			h.AssertEq(t, extDesc.Targets(), targets)
 		})
 	})
-
 }