On hosts having services on different IP addresses, *:80 is not enough
to run the security vhost on localhost, as other services might also
explicitly bind to localhost. This breaks mirror-health check.
For example on schmelzer.d.o:
010-archive.debian.org.conf
<VirtualHost 217.196.149.234:80 [2a02:16a8:dc41:100::234]:80>
010-debug.mirrors.debian.org.conf
<VirtualHost 217.196.149.232:80 [2a02:16a8:dc41:100::232]:80 127.0.0.1:80 [::1]:80 >
010-ftp.debian.org.conf
<VirtualHost 217.196.149.232:80 [2a02:16a8:dc41:100::232]:80 127.0.0.1:80 [::1]:80 >
010-security.debian.org.conf
<VirtualHost *:80>
Without this fix, it means that a request to security.backend.mirrors.d.o
on localhost ends up in the debug.mirrors.d.o vhost, and is thus
answered as 404.
## USE: git clone git+ssh://$USER@puppet.debian.org/srv/puppet.debian.org/git/dsa-puppet.git
##
-<VirtualHost *:80>
+<VirtualHost *:80 127.0.0.1:80 [::1]:80>
ServerAdmin debian-admin@debian.org
DocumentRoot /srv/mirrors/debian-security
ServerPath /debian-security