[distcc] [bug report] LANG and family is not passing from user side to server side

[Xuefer]

env var like LANG LC_MESSAGES etc isn't not collected from user side
to server side, this make server failed to produce correct error
message output in specified language/encoding

i'm using gentoo with /etc/env.d/00lang set, so distccd will started
with that specified lang, but  user may use another LANG value,
language problem is minor but encoding make it unreadable