[Webapps-common-packages] Bug#417928: bugzilla: update README.Debian for apache2

[John Morrissey]

Package: bugzilla
Version: 2.22.1-2
Severity: minor
Tags: patch

README.Debian says:

  You will need to enable the Apache mod_env module first:
    
    # apache-modconf apache enable mod_env

but for apache2, you must:

    # a2enmod env

-- System Information:
Debian Release: 4.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: alpha
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-4-alpha-smp
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages bugzilla depends on:
ii  apache2                    2.2.3-4       Next generation, scalable, extenda
ii  apache2-mpm-prefork [httpd 2.2.3-4       Traditional model for Apache HTTPD
ii  dbconfig-common            1.8.29+etch1  common framework for packaging dat
ii  debconf [debconf-2.0]      1.5.11        Debian configuration management sy
ii  libappconfig-perl          1.56-2        Perl module for configuration file
ii  libdbd-mysql-perl          3.0008-1      A Perl5 database interface to the 
ii  libmailtools-perl          1.74-1        Manipulate email in perl programs
ii  libmime-perl               5.420-0.1     Perl5 modules for MIME-compliant m
ii  libtemplate-perl           2.14-1        template processing system written
ii  libtimedate-perl           1.1600-5      Time and date functions for Perl
ii  mysql-client-5.0 [mysql-cl 5.0.32-7etch1 mysql database client binaries
ii  patch                      2.5.9-4       Apply a diff file to an original
ii  postfix [mail-transport-ag 2.3.8-2       A high-performance mail transport 
ii  ucf                        2.0020        Update Configuration File: preserv

Versions of packages bugzilla recommends:
ii  libchart-perl       2.4.1-4              Chart Library for Perl
ii  libxml-parser-perl  2.34-4.2             Perl module for parsing XML files
ii  mysql-server-5.0 [m 5.0.32-7etch1        mysql database server binaries
ii  perlmagick          7:6.2.4.5.dfsg1-0.14 A perl interface to the libMagick 

-- debconf information excluded