Use "/usr/bin/env ruby" instead of "/usr/local/bin/ruby"

Signed-off-by: Joshua Peek <josh@joshpeek.com>

actionpack/lib/action_controller/session/drb_server.rb

@@ -1,4 +1,4 @@
-#!/usr/local/bin/ruby -w
+#!/usr/bin/env ruby
 
 # This is a really simple session storage daemon, basically just a hash,
 # which is enabled for DRb access.

railties/dispatches/dispatch.fcgi

@@ -1,4 +1,4 @@
-#!/usr/local/bin/ruby
+#!/usr/bin/env ruby
 #
 # You may specify the path to the FastCGI crash log (a log of unhandled
 # exceptions which forced the FastCGI instance to exit, great for debugging)

railties/dispatches/dispatch.rb

@@ -1,4 +1,4 @@
-#!/usr/local/bin/ruby
+#!/usr/bin/env ruby
 
 require File.dirname(__FILE__) + "/../config/environment" unless defined?(RAILS_ROOT)
 

railties/dispatches/gateway.cgi

@@ -1,4 +1,4 @@
-#!/usr/local/bin/ruby
+#!/usr/bin/env ruby
 
 require 'drb'
 

railties/lib/commands/ncgi/listener

@@ -1,4 +1,4 @@
-#!/usr/local/bin/ruby
+#!/usr/bin/env ruby
 
 require 'stringio'
 require 'fileutils'

railties/lib/commands/ncgi/tracker

@@ -1,4 +1,4 @@
-#!/usr/local/bin/ruby
+#!/usr/bin/env ruby
 
 require 'drb'
 require 'thread'