Bug#257645: Problem with change to apache2 init script

["Guyang Mao" <arioch@despayre.org>]

This snippet of code in the init script does not deal with TERMCAP
correctly.

for envkey in `env| cut -d'=' -f1`
do
        unset $envkey
done

Unless the TERMCAP entry is unset, the init script cannot run as written.