HEADS UP: putenv, setenv, unsetenv, getenv changes

All functions in subj. now conforms to Open Group specs and POSIX.
I believe I fix all obsoleted and hack places in our tree which uses 
old behaviour. The ports system is under consideration.

Please send any problems you'll may found.

For now I need some hours or sleep at least, so my response will be 
delayed a bit.

-- 
http://ache.pp.ru/