chroot-coreutils: fix cp(1) -a with musl and probably others.
chroot-findutils: remove charset.alias if exists.
chroot-grep: update to 2.16.
chroot-gzip: remove charset.alias if exists.
chroot-patch: remove charset.alias if exists.
chroot-sed: remove charset.alias if exists.
chroot-tar: update to 1.27.1.
chroot-texinfo: remove charset.alias if exists.
chroot-m4: remove charset.alias if exists.