Fix two data races in shell tool#2127

dgageot merged 1 commit intodocker:maindocker/docker-agent:mainfrom

dgageot:board/look-at-the-buitin-shell-tool-code-and-f-65e4e4bfdgageot/cagent:board/look-at-the-buitin-shell-tool-code-and-f-65e4e4bfCopy head branch name to clipboard