[package] fix debian package description

--HG--
branch : stable

debian/control

@@ -10,7 +10,7 @@ Homepage: http://www.cubicweb.org/project/cubicweb-forgotpwd
 Package: cubicweb-forgotpwd
 Architecture: all
 Depends: cubicweb-common (>= 3.6.1), python-crypto, python-imaging
-Description: password recovery cube
+Description: password recovery component for the CubicWeb framework
  This CubicWeb component provides password recovery functionnality.
  .
  CubicWeb is a semantic web application framework, see http://www.cubicweb.org