use newer version cli

Gopkg.lock

@@ -1,12 +1,6 @@
 # This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
 
 
-[[projects]]
-  name = "github.com/codegangsta/cli"
-  packages = ["."]
-  revision = "cfb38830724cc34fedffe9a2a29fb54fa9169cd1"
-  version = "v1.20.0"
-
 [[projects]]
   branch = "master"
   name = "github.com/dustin/go-humanize"
@@ -67,6 +61,12 @@
   revision = "f006c2ac4710855cf0f916dd6b77acf6b048dc6e"
   version = "v1.0.3"
 
+[[projects]]
+  name = "github.com/urfave/cli"
+  packages = ["."]
+  revision = "cfb38830724cc34fedffe9a2a29fb54fa9169cd1"
+  version = "v1.20.0"
+
 [[projects]]
   name = "github.com/yudai/gotty"
   packages = ["pkg/homedir"]
@@ -106,6 +106,6 @@
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "8ee0066f90aab988cd1553eedcde5f62c9d2a9d3c18d2a4ea0a57a85df4b2eab"
+  inputs-digest = "f8ef1cfe7bc4581e86cff48f7b1d070246e97b9d49fcf6d30a4421e5b3bfaf75"
   solver-name = "gps-cdcl"
   solver-version = 1

common/flags.go

@@ -7,7 +7,7 @@ import (
 	"reflect"
 	"strings"
 
-	"github.com/codegangsta/cli"
+	"github.com/urfave/cli"
 	"github.com/fatih/structs"
 	"github.com/yudai/hcl"
 

main.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"os"
 	"strings"
-	"github.com/codegangsta/cli"
+	"github.com/urfave/cli"
 	"github.com/yudai/gotty/pkg/homedir"
 	"github.com/smileboywtu/croc/common"
 )
@@ -52,7 +52,7 @@ func main() {
 	if err != nil {
 		exit(err, 3)
 	}
-
+	
 	app.Flags = append(
 		cliFlags,
 		cli.StringFlag{