Distribution tarballs contain bogus empty go-init and go-java-launcher directories

[sfackler]

The last entries in a distribution tarball produced by the plugin look like this:

my-service-1.48.0-33-g0c0aacc/service/bin/go-init-1.11.0/
my-service-1.48.0-33-g0c0aacc/service/bin/go-init-1.11.0/service/
my-service-1.48.0-33-g0c0aacc/service/bin/go-init-1.11.0/service/bin/
my-service-1.48.0-33-g0c0aacc/service/bin/go-init-1.11.0/service/bin/darwin-amd64/
my-service-1.48.0-33-g0c0aacc/service/bin/go-init-1.11.0/service/bin/linux-amd64/
my-service-1.48.0-33-g0c0aacc/service/bin/go-init-1.11.0/service/bin/linux-arm64/
my-service-1.48.0-33-g0c0aacc/service/bin/go-java-launcher-1.11.0/
my-service-1.48.0-33-g0c0aacc/service/bin/go-java-launcher-1.11.0/service/
my-service-1.48.0-33-g0c0aacc/service/bin/go-java-launcher-1.11.0/service/bin/
my-service-1.48.0-33-g0c0aacc/service/bin/go-java-launcher-1.11.0/service/bin/darwin-amd64/
my-service-1.48.0-33-g0c0aacc/service/bin/go-java-launcher-1.11.0/service/bin/linux-amd64/
my-service-1.48.0-33-g0c0aacc/service/bin/go-java-launcher-1.11.0/service/bin/linux-arm64/

I believe this is because CopySpec#eachFile only runs on files and not directories, which prevents the rewrite logic here. An option to fix this is to disable includeEmptyDirs.