When puppet is run from scripts or environments without tty it's required to
set locale as it can be empty or LC_ALL=c, though many puppet manifests
have Unicode characters.
Change-Id: I824b3212b0c258650c457dfe5e2fb5cc9f6a5a4b
blueprint: support-ubuntu-trusty
Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>