Fix locale

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
	LANGUAGE = (unset),
	LC_ALL = (unset),
	LC_TIME = "fr_FR.UTF-8",
	LC_MONETARY = "fr_FR.UTF-8",
	LC_ADDRESS = "fr_FR.UTF-8",
	LC_TELEPHONE = "fr_FR.UTF-8",
	LC_NAME = "fr_FR.UTF-8",
	LC_MEASUREMENT = "fr_FR.UTF-8",
	LC_IDENTIFICATION = "fr_FR.UTF-8",
	LC_NUMERIC = "fr_FR.UTF-8",
	LC_PAPER = "fr_FR.UTF-8",
	LANG = "en_GB.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to a fallback locale ("en_GB.UTF-8").
locale: Cannot set LC_ALL to default locale: No such file or directory

closed