Bug#633599: explicit cleanup command

[jidanni at jidanni.org]

Package: cpanminus
Version: 1.4008-1
Severity: wishlist

I am offline.
$ du -hs .cpanm
3.0M    .cpanm
It has been weeks since I have used cpanm.
I want to clean up that wasted disk space.
But there is no cpanm command that will expire them.
Maybe you expect me to go online and do some operation, and then you
will clean them up automatically for me. But I don't want to go online today.