(RaspberryPi2)ubuntu@localhost:~$ sudo snappy config config-example my.yaml
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
	LANGUAGE = (unset),
	LC_ALL = (unset),
	LC_TIME = "zh_CN.UTF-8",
	LC_NUMERIC = "zh_CN.UTF-8",
	LC_NAME = "zh_CN.UTF-8",
	LC_MONETARY = "zh_CN.UTF-8",
	LC_ADDRESS = "zh_CN.UTF-8",
	LC_TELEPHONE = "zh_CN.UTF-8",
	LC_IDENTIFICATION = "zh_CN.UTF-8",
	LC_MEASUREMENT = "zh_CN.UTF-8",
	LC_PAPER = "zh_CN.UTF-8",
	LANG = "C.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to a fallback locale ("C.UTF-8").
config:
  config-example:
    msg: Yay!