[GO] GCP Ubuntu 14.04 and above: Japanese localization of system language and time zone

Set the language of the GCP instance Ubuntu 14.04 to Japanese

1. Installation of Japanese pack ```$ sudo apt-get install language-pack-ja``` 2. Execute localctl

`ja"`



 <h4> <Change time zone> </ h4>
 1. Execute timedatectl
```$ sudo timedatectl set-timezone asia/tokyo```
 2. Reboot the instance (reflected by re-login after a while)
```$ sudo shutdown -r now```