utils.py shell routine - add LANG=C to commandline

LC_ALL=C is not enough in CentOS to force English command output. 
Here is my testcase:
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[root@vps ~]# cat /etc/redhat-release 
CentOS release 5.9 (Final)

[root@vps ~]# locale
LANG=uk_UA.UTF-8
LC_CTYPE="uk_UA.UTF-8"
LC_NUMERIC="uk_UA.UTF-8"
LC_TIME="uk_UA.UTF-8"
LC_COLLATE="uk_UA.UTF-8"
LC_MONETARY="uk_UA.UTF-8"
LC_MESSAGES="uk_UA.UTF-8"
LC_PAPER="uk_UA.UTF-8"
LC_NAME="uk_UA.UTF-8"
LC_ADDRESS="uk_UA.UTF-8"
LC_TELEPHONE="uk_UA.UTF-8"
LC_MEASUREMENT="uk_UA.UTF-8"
LC_IDENTIFICATION="uk_UA.UTF-8"
LC_ALL=

[root@vps ~]# LC_ALL=C service nginx status
nginx (pid  2722) виконується...

[root@vps ~]# LANG=C LC_ALL=C service nginx status
nginx (pid  2722) is running...
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