special_env_vars: add ESYSROOT and SYSROOT to environ_whitelist

Since these variables are filtered from the peristent ebuild environment
by the __filter_readonly_variables function, they have to be whitelisted
so that the config.environ() method allow them to pass through.

Fixes: a41dacf7926c ("Export SYSROOT and ESYSROOT in ebuild env in EAPI 7")
Reported-by: James Le Cuirot <chewi@gentoo.org>
1 file changed