Make `--navigateToChanged` more robust on Windows
Make `--navigateToChanged` more robust on Windows

This ensures the new "open 'current content page' in browser" works
on Windows, especially with Emacs and Vim.

Special thanks to @bep for coming up with the idea of the fix.

See #3645

anthonyfok/hugo,fedelibre/hugo,fedelibre/hugo,gohugoio/hugo,anthonyfok/hugo,mdhender/hugo,anthonyfok/hugo,fedelibre/hugo,gohugoio/hugo,gohugoio/hugo,mdhender/hugo,mdhender/hugo,fedelibre/hugo,mdhender/hugo