Bug#34744: apt: man page: df(clean) and df(autoclean)

[wooledge@kellnet.com]

Package: apt
Version: 0.3.2

Just a little glitch in the man page -- the strings "df(clean)" and
"df(autoclean)" appear in /usr/man/man8/apt-get.8.gz (after unzipping)
and thus on the screen when the man page is viewed.

-- System Information
Debian Release: potato
Kernel Version: Linux jekyll 2.2.3 #6 Tue Mar 9 18:57:03 EST 1999 i586 unknown

Versions of the packages apt depends on:
ii  libc6           2.1.1-0pre1.2  GNU C Library: shared libraries
ii  libstdc++2.9    2.91.61-1      The GNU stdc++ library (egcs version)