Hello, I did this little patch to do some experiments around the idea of having the kernel building system being able to produce a tarball containing all the required files for building out-of-tree modules. The direct advantage would be mainly for distributions' packagers who do not need anymore to specify the list of required files - for all distributions. This is just a draft, to see if the idea has some value for the community. For sure the list of files is incomplete, and in other cases it adds more than necessary. I see `rsync` is already in use in other files, so I'm not introducing a new dependency, but of course it can be easily replaced with something else. I copied from `scripts/package/buildtar` the parts about creating the tarball. so, ready for comments :)
