[PATCH] ./script/dbconsole is broken in edge rails

Commit http://github.com/rails/rails/commit/8cb594a2e1808cd7d93f3593afed04... broke ./script/dbconsole. I've provided a quick fix for it..
Here's how it works now

[sam@sambookpro] [~/Sites/edgeapp]
[git:master] % ./script/dbconsole 
/Users/sam/Documents/Development/ruby/rails/railties/lib/rails/commands/dbconsole.rb:37:in `start': undefined local variable or method `env' for #<Rails::DBConsole:0x1021ca400> (NameError)
    from /Users/sam/Documents/Development/ruby/rails/railties/lib/rails/commands/dbconsole.rb:8:in `start'
    from ./script/dbconsole:6
[sam@sambookpro] [~/Sites/edgeapp]