Use golang.org/x/sys/execabs

Signed-off-by: Tibor Vass <tibor@docker.com>

vendor/github.com/docker/cli/cli/command/registry.go

@@ -63,6 +63,9 @@ func RegistryAuthenticationPrivilegedFunc(cli Cli, index *registrytypes.IndexInf
 		indexServer := registry.GetAuthConfigKey(index)
 		isDefaultRegistry := indexServer == ElectAuthServer(context.Background(), cli)
 		authConfig, err := GetDefaultAuthConfig(cli, true, indexServer, isDefaultRegistry)
+		if authConfig == nil {
+			authConfig = &types.AuthConfig{}
+		}
 		if err != nil {
 			fmt.Fprintf(cli.Err(), "Unable to retrieve stored credentials for %s, error: %s.\n", indexServer, err)
 		}

vendor/github.com/docker/cli/cli/command/utils.go

@@ -125,7 +125,6 @@ func PruneFilters(dockerCli Cli, pruneFilters filters.Args) filters.Args {
 func AddPlatformFlag(flags *pflag.FlagSet, target *string) {
 	flags.StringVar(target, "platform", os.Getenv("DOCKER_DEFAULT_PLATFORM"), "Set platform if server is multi-platform capable")
 	flags.SetAnnotation("platform", "version", []string{"1.32"})
-	flags.SetAnnotation("platform", "experimental", nil)
 }
 
 // ValidateOutputPath validates the output paths of the `export` and `save` commands.