Drop useless warnings
Everytime the build stage shows these warnings:
find: 'artifacts/*.tar.*': No such file or directory
find: 'artifacts/build-selftests.log': No such file or directory
find: 'artifacts/kselftest.tar.gz': No such file or directory
find: 'artifacts/build-selftests.yaml': No such file or directory
find: 'artifacts/mr.diff': No such file or directory
They are shown right before the line:
Compiling the kernel with: rpmbuild ...
Do not send these warnings to the console.
Edited by Tino Calancha