Reducing the Essential set
--------------------------

* diff (only needed by dpkg, 1 MiB)
* perl-base (once no perl scripts in essential, 4.7 MiB)
* e2fsprogs (once fsck out, findfs replaced by blkid, 2.1 MiB)

* findutils (1.4 MiB)
* bsdutils (131 KiB)

* sensible-utils (out of pseudo-essential through debianutils depends,
                  124 KiB → probably not worth it)
* awk (pseudo-essential through base-files, 198 KiB → probably not worth it)