Fix task description for db:sessions:create. Closes #9419 [topfunky]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7398 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

railties/lib/tasks/databases.rake

@@ -249,7 +249,7 @@ namespace :db do
   end
 
   namespace :sessions do
-    desc "Creates a sessions table for use with CGI::Session::ActiveRecordStore"
+    desc "Creates a sessions migration for use with CGI::Session::ActiveRecordStore"
     task :create => :environment do
       raise "Task unavailable to this database (no migration support)" unless ActiveRecord::Base.connection.supports_migrations?
       require 'rails_generator'