linters: Add goimports

Signed-off-by: Mark D Horn <mark.d.horn@intel.com>

.golangci.yml

@@ -14,6 +14,7 @@ linters:
     - ineffassign
     - gocyclo
     - gofmt
+    - goimports
     - golint
     - deadcode
     - varcheck

gui/pages/timezone.go

@@ -1,17 +1,17 @@
-// Copyright © 2019 Intel Corporation
+// Copyright © 2020 Intel Corporation
 //
 // SPDX-License-Identifier: GPL-3.0-only
 
 package pages
 
 import (
-	"github.com/clearlinux/clr-installer/utils"
 	"strings"
 
 	"github.com/gotk3/gotk3/gtk"
 
 	"github.com/clearlinux/clr-installer/model"
 	"github.com/clearlinux/clr-installer/timezone"
+	"github.com/clearlinux/clr-installer/utils"
 )
 
 // TimezonePage is a simple page to help with TimezonePage settings

tui/menu_button.go

@@ -1,4 +1,4 @@
-// Copyright © 2018 Intel Corporation
+// Copyright © 2020 Intel Corporation
 //
 // SPDX-License-Identifier: GPL-3.0-only
 
@@ -7,12 +7,12 @@ package tui
 import (
 	"fmt"
 	"strings"
+	"sync/atomic"
+	"time"
 
 	"github.com/VladimirMarkelov/clui"
 	xs "github.com/huandu/xstrings"
 	term "github.com/nsf/termbox-go"
-	"sync/atomic"
-	"time"
 )
 
 // MenuButton is the implementation of a clui button with simpler