Add a description to varnishadm man page for whatis

git-svn-id: http://www.varnish-cache.org/svn/trunk@3270 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishadm/varnishadm.1

@@ -33,6 +33,7 @@
 .Os
 .Sh NAME
 .Nm varnishadm
+.Nd Control a running varnish instance
 .Sh SYNOPSIS
 .Nm
 .Fl T Ar address Ns : Ns Ar port