fixes from the Vim project

[chrisbra]

Hi,
please be aware of the following change I made in the Vim project to prevent executing the zig command line tool on windows from the current directory.

See vim/vim@816fbcc and https://huntr.dev/bounties/e1ce0995-4df4-4dec-9cd7-3136ac3e8e71/

You may want to check it and include the fix in your version.

Thanks,
Chris