Apply Go security patches

patch go

Update Go and dependencies to mitigate more vulnerabilities.

Update Go to apply the latest memory safety and security patches.

Rewritten from POSIX sh to Go.

• New flags, including -m <MiB> to limit batch directories by total content size.
• General improvements in handling of filenames with spaces and other wild characters.
• Support expanded from the UNIX family to include native Windows users as well.
• Removed dependency on external utilities.
• Minor performance improvements.