gh-87868: Sort and remove duplicates in getenvironment() (GH-102731)

(cherry picked from commit c31be58da8577ef140e83d4e46502c7bb1eb9abf)

Co-authored-by: AN Long <aisk@users.noreply.github.com>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com>
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>

Miss Islington (bot) committed 2y ago

d15e1ac828716623253ef1a0db404bc42434e3f5

Parent: a956e51

Committed by GitHub <noreply@github.com> on 1/11/2024, 10:27:12 PM