builder/vmware: log when writing a VMX

builder/vmware/vmx.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"fmt"
 	"io"
+	"log"
 	"os"
 	"regexp"
 	"sort"
@@ -51,6 +52,7 @@ func EncodeVMX(contents map[string]string) string {
 // WriteVMX takes a path to a VMX file and contents in the form of a
 // map and writes it out.
 func WriteVMX(path string, data map[string]string) (err error) {
+	log.Printf("Writing VMX to: %s", path)
 	f, err := os.Create(path)
 	if err != nil {
 		return