New review comment by classabbyamp on void-packages repository

https://github.com/void-linux/void-packages/pull/46795#discussion_r1605816160

Comment:
```suggestion
go_import_path="github.com/librespeed/speedtest-cli"
go_ldflags="-X librespeed-cli/defs.ProgName=${pkgname} -X librespeed-cli/defs.ProgVersion=${version}"
```
from https://github.com/librespeed/speedtest-cli/blob/master/build.sh#L15