use setenv() (was: bug in putenv()!)

[Maarten Litmaath]

I've submitted `setenv.c - a sorted environment package' to comp.sources.unix.
setenv() doesn't have an `automatic' variable trap, its usage is easier
- setenv(var, value) - and it keeps the environment sorted.
-- 
 "Those who do not understand Henry     |Maarten Litmaath @ VU Amsterdam:
Spencer are condemned to reinvent DOS." |maart at cs.vu.nl, mcvax!botter!maart