scripts/generate-plugins.go: programatically gofmt the file before outputing it to avoid having to do that later on

Makefile

@@ -121,7 +121,6 @@ generate: install-gen-deps ## Generate dynamically generated code
 	@find post-processor common helper template builder provisioner -type f | xargs grep -l '^// Code generated' | xargs rm
 	go generate ./...
 	go fmt common/bootcommand/boot_command.go
-	go fmt command/plugin.go
 
 generate-check: generate ## Check go code generation is on par
 	@echo "==> Checking that auto-generated code is not changed..."

scripts/generate-plugins.go

@@ -15,6 +15,8 @@ import (
 	"path/filepath"
 	"sort"
 	"strings"
+
+	"golang.org/x/tools/imports"
 )
 
 const target = "command/plugin.go"
@@ -58,6 +60,8 @@ func main() {
 	}
 	defer file.Close()
 
+	output = string(goFmt(target, []byte(output)))
+
 	_, err = file.WriteString(output)
 	if err != nil {
 		log.Fatalf("Failed writing to %s: %s", target, err)
@@ -66,6 +70,15 @@ func main() {
 	log.Printf("Generated %s", target)
 }
 
+func goFmt(filename string, b []byte) []byte {
+	fb, err := imports.Process(filename, b, nil)
+	if err != nil {
+		log.Printf("formatting err: %v", err)
+		return b
+	}
+	return fb
+}
+
 type plugin struct {
 	Package    string // This plugin's package name (iso)
 	PluginName string // Name of plugin (vmware-iso)