fix descriptions to please lintian

debian/control

@@ -13,8 +13,13 @@ Package: aegir-provision
 Architecture: all
 Depends: ${misc:Depends}, drush (>= 2.0), php5-mysql, mysql-client, sudo, postfix | mail-transport-agent, apache2 | apache, adduser, ucf
 Recommends: mysql-server
-Description: backend of the Aegir hosting system
- Provision is a component of the Aegir hosting system.
+Description: mass Drupal hosting system - backend
+ A set of contributed modules for Drupal that aims to solve the
+ problem of managing a large number of Drupal sites. It does this by
+ providing you with a simple Drupal based hosting front end for your
+ entire network of sites. To deploy a new site you simply have to
+ create a new Site node. To backup or upgrade sites, you simply manage
+ your site nodes as you would any other node.
  .
  This package provides Drush commands used for system level tasks such
  as creating configuration files and managing databases and backup
@@ -24,8 +29,13 @@ Description: backend of the Aegir hosting system
 Package: aegir-hostmaster
 Architecture: all
 Depends: ${misc:Depends}, drush (>= 2.0), php5-mysql, apache2 | apache, aegir-provision
-Description: frontend of the Aegir hosting system
- Hostmaster is a component of the Aegir hosting system.
+Description: mass Drupal hosting system - frontend
+ A set of contributed modules for Drupal that aims to solve the
+ problem of managing a large number of Drupal sites. It does this by
+ providing you with a simple Drupal based hosting front end for your
+ entire network of sites. To deploy a new site you simply have to
+ create a new Site node. To backup or upgrade sites, you simply manage
+ your site nodes as you would any other node.
  .
  This package provides the frontend web interface that users generally
  interact with. It's made up of a regular Drupal site with a custom
@@ -38,11 +48,11 @@ Description: frontend of the Aegir hosting system
 Package: aegir
 Architecture: all
 Depends: ${misc:Depends}, aegir-provision, aegir-hostmaster
-Description: Aegir hosting system metapackage
- Aegir is a set of contributed modules for Drupal that aims to solve
- the problem of managing a large number of Drupal sites. It does this
- by providing you with a simple Drupal based hosting front end for
- your entire network of sites. To deploy a new site you simply have to
+Description: mass Drupal hosting system
+ A set of contributed modules for Drupal that aims to solve the
+ problem of managing a large number of Drupal sites. It does this by
+ providing you with a simple Drupal based hosting front end for your
+ entire network of sites. To deploy a new site you simply have to
  create a new Site node. To backup or upgrade sites, you simply manage
  your site nodes as you would any other node.
  .