Merged requested to merge nl6720/mkinitcpio:fix-copy-in-shutdown into master
cp will fail to copy
/ if the target directory already exists.
The produced error is not very helpful:
cp: cannot create directory '/run/initramfs/': No such file or directory
Instead of copying
/. to avoid the issue.
Fixes #104 (closed), Fixes https://bugs.archlinux.org/task/74534