[3.13] gh-131277: allow EnvironmentVarGuard to unset more than one environment variable at once (GH-131280)#131409

picnixz merged 3 commits intopython:3.13python/cpython:3.13from

picnixz:bp-313/3185e3115c918ec189e16cf9f5b51a13a0146556/unset-env-var-131280picnixz/cpython:bp-313/3185e3115c918ec189e16cf9f5b51a13a0146556/unset-env-var-131280Copy head branch name to clipboard