refactor!: migrate to urfave/cli v1

Better flexible flags handling.

cli/recipe/recipe.go

@@ -1,15 +1,15 @@
 package recipe
 
 import (
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli"
 )
 
 // RecipeCommand defines all recipe related sub-commands.
-var RecipeCommand = &cli.Command{
+var RecipeCommand = cli.Command{
 	Name:      "recipe",
+	Aliases:   []string{"r"},
 	Usage:     "Manage recipes",
 	ArgsUsage: "<recipe>",
-	Aliases:   []string{"r"},
 	Description: `
 A recipe is a blueprint for an app. It is a bunch of config files which
 describe how to deploy and maintain an app. Recipes are maintained by the Co-op
@@ -20,7 +20,7 @@ sure the recipe is in good working order and the config upgraded in a timely
 manner. Abra supports convenient automation for recipe maintainenace, see the
 "abra recipe upgrade", "abra recipe sync" and "abra recipe release" commands.
 `,
-	Subcommands: []*cli.Command{
+	Subcommands: []cli.Command{
 		recipeListCommand,
 		recipeVersionCommand,
 		recipeReleaseCommand,