erts: Fix large read_file on Windows#8036

jhogberg wants to merge 1 commit intoerlang:mainterlang/otp:maintfrom

jhogberg:john/erts/fix-read-file-2G-windows/OTP-18939jhogberg/otp:john/erts/fix-read-file-2G-windows/OTP-18939Copy head branch name to clipboard