net/http/cgi: merge upstream changes to default env vars

Incorporate upstream modifications to the cgi package's set of rules
about which environment variables should be inherited by child processes
by default on each platform. In particular this permits tests to pass on
NetBSD by preserving the value of the LD_LIBRARY_PATH environment

This is a partial backport of the following upstream CLs:

Change-Id: Iedda007372fd4e99fcc231978d663b6ffefb6718
Reviewed-by: Ian Lance Taylor <>
Reviewed-by: Emmanuel Odeke <>
Run-TryBot: Emmanuel Odeke <>
1 file changed