Common/Sanitizer: terminate $env: env-name on whitespace (LF/CR/TAB) — PS twin of #22181#22206

wawanawna wants to merge 2 commits into

microsoft:mastermicrosoft/azure-pipelines-tasks:masterfrom

wawanawna:users/wawanawna/fix-expand-env-newline-terminatorwawanawna/azure-pipelines-tasks:users/wawanawna/fix-expand-env-newline-terminatorCopy head branch name to clipboard