Debian/control: fix packages description

Signed-off-by: Dylan Aïssi <dylan.aissi@collabora.com>

debian/control

@@ -30,7 +30,10 @@ Description: Mount point monitoring service - shared library
 Package: prestwood
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends}
-Description: Prestwood is a service responsible for maintaining the mount points list.
+Description: Mount point monitoring service
+ Prestwood maintains a list of mount points.
+ .
+ Prestwood is a service responsible for maintaining the mount points list.
 
 Package: prestwood-dev
 Section: libdevel
@@ -40,7 +43,10 @@ Depends: ${shlibs:Depends}, ${misc:Depends},
          prestwood (= ${binary:Version}),
 Recommends:
  prestwood-doc
-Description: This package contains the header files for prestwood.
+Description: Mount point monitoring service - header files
+ Prestwood maintains a list of mount points.
+ .
+ This package contains the header files for prestwood.
 
 Package: prestwood-doc
 Section: doc
@@ -48,14 +54,20 @@ Architecture: all
 Multi-Arch: foreign
 Depends:
  ${misc:Depends},
-Description: This package contains the API reference for the prestwood service.
+Description: Mount point monitoring service - documentation
+ Prestwood maintains a list of mount points.
+ .
+ This package contains the API reference for the prestwood service.
 
 Package: prestwood-tests
 Section: libdevel
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends},
          prestwood (= ${binary:Version}),
-Description: This package contains the tests for prestwood
+Description: Mount point monitoring service - tests
+ Prestwood maintains a list of mount points.
+ .
+ This package contains the tests for prestwood.
 
 Package: gir1.2-prestwoodinterface-0
 Section: introspection
@@ -64,4 +76,7 @@ Depends:
  ${gir:Depends},
  ${shlibs:Depends},
  ${misc:Depends},
-Description: This package contains the prestwood interface introspection data.
+Description: Mount point monitoring service - introspection data
+ Prestwood maintains a list of mount points.
+ .
+ This package contains the prestwood interface introspection data.