df command is showing output in English language irrespective of locale settings in Red Hat Enterprise Linux 6.5

Issue

• df command is showing output in English language only irrespective of locale settings.
• locale is set to Deutsch, after upgrade to 6.5 df command is showing output in English language

For

LANG="de_DE.UTF-8"
SYSFONT="latarcyrheb-sun16"

the output of df -Ph is as follows:

testuser@example:~$ df -Ph
Filesystem               Size  Used Avail Use% Mounted on
/dev/sda1                2,0G  581M  1,4G  31% /
tmpfs                     48G  3,5G   44G   8% /dev/shm
/dev/mapper/vg00-lvol05   30G   21G  7,3G  75% /home
/dev/mapper/vg00-lvol04 1008M  185M  773M  20% /opt