Switch to go modules
$ sha1sum dockviz_*
11cda33fca639e474a7459c8d1030a8dc6873305 dockviz_darwin_amd64
2c97682442bd4bf689333cab1ee558d82fac410f dockviz_linux_amd64
7beef48b194bc22caecf408634487ad295a2dd4d dockviz_windows_amd64.exe
$ sha256sum dockviz_*
010ac99a4a5742cad4e611d11f84020b4af8b9b2fc4786c6dd5db27936165538 dockviz_darwin_amd64
0da14fcd72cb9fdd294cf5e8c918d1ea9a6909a40f14d550fbe58e8d1ea5e337 dockviz_linux_amd64
896e4156f3a8c37b75e26011b6172bc5261fd001ecdf192e994c1f97ca5a2b6a dockviz_windows_amd64.exe