GH-50803: [CI][Dev] Fix shellcheck errors in the ci/scripts/r_windows_build.sh - #50818

GH-50803: [CI][Dev] Fix shellcheck errors in the ci/scripts/r_windows_build.sh#50818

kou merged 1 commit into

apache:mainapache/arrow:mainfrom

hiroyuki-sato:topic/shellcheck-r_windows_buildhiroyuki-sato/arrow:topic/shellcheck-r_windows_buildCopy head branch name to clipboard