config: blacklist GREP_OPTIONS variable

This variable could cause interference with the ebuild environment and
portage shell code, like in bug 370085.

diff --git a/pym/portage/package/ebuild/_config/special_env_vars.py b/pym/portage/package/ebuild/_config/special_env_vars.py
index 87aa606011d10860e2372f6c1fd0e3657ceee33a..1b54867be8bf27b2e485aa0f028978693bcafeba 100644 (file)
--- a/pym/portage/package/ebuild/_config/special_env_vars.py
+++ b/pym/portage/package/ebuild/_config/special_env_vars.py
@@ -15,7 +15,7 @@ env_blacklist = frozenset((
        "A", "AA", "CATEGORY", "DEPEND", "DESCRIPTION", "EAPI",
        "EBUILD_FORCE_TEST", "EBUILD_PHASE", "EBUILD_SKIP_MANIFEST",
        "ED", "EMERGE_FROM", "EPREFIX", "EROOT",
-       "HOMEPAGE", "INHERITED", "IUSE",
+       "GREP_OPTIONS", "HOMEPAGE", "INHERITED", "IUSE",
        "KEYWORDS", "LICENSE", "MERGE_TYPE",
        "PDEPEND", "PF", "PKGUSE", "PORTAGE_BACKGROUND",
        "PORTAGE_BACKGROUND_UNMERGE", "PORTAGE_BUILDIR_LOCKED",