-ERROR_OUTPUT.bash

$ rake spec
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby -S rspec --color
bash: -S: invalid option
Usage:	bash [GNU long option] [option] ...
	bash [GNU long option] [option] script-file ...
GNU long options:
	--debug
	--debugger
	--dump-po-strings
	--dump-strings
	--help
	--init-file
	--login
	--noediting
	--noprofile
	--norc
	--posix
	--protected
	--rcfile
	--restricted
	--verbose
	--version
Shell options:
	-irsD or -c command or -O shopt_option		(invocation only)
	-abefhkmnptuvxBCHP or -o option
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby -S rspec --color failed

:usr:local:var:rbenv:shims:ruby.sh

#!/usr/bin/env bash
set -e
[ -n "$RBENV_DEBUG" ] && set -x

program="${0##*/}"
if [ "$program" = "ruby" ]; then
  for arg; do
    case "$arg" in
    -e* | -- ) break ;;
    */* )
      if [ -f "$arg" ]; then
        export RBENV_DIR="${arg%/*}"
        break
      fi
      ;;
    esac
  done
fi

export RBENV_ROOT="/usr/local/var/rbenv"
exec "/usr/local/Cellar/rbenv/0.4.0/libexec/rbenv" exec "$program" "$@"

Rakefile

require 'rubygems'
require 'puppetlabs_spec_helper/rake_tasks'

spec.opts

--format
s
--colour
--loadby
mtime
--backtrace

spec_helper.rb

require 'pathname'
dir = Pathname.new(__FILE__).parent
$LOAD_PATH.unshift(dir, dir + 'lib', dir + '../lib')

require 'mocha'
require 'puppet'
gem 'rspec', '=1.2.9'
require 'spec/autorun'
require 'rubygems'
require 'puppetlabs_spec_helper/module_spec_helper'

Spec::Runner.configure do |config|
    config.mock_with :mocha
end

# We need this because the RAL uses 'should' as a method.  This
# allows us the same behaviour but with a different method name.
class Object
    alias :must :should
end

/bin/sh: -1: invalid option
Usage: /bin/sh [GNU long option] [option] ...
/bin/sh [GNU long option] [option] script-file ...
GNU long options:
--debug
--debugger
--dump-po-strings
--dump-strings
--help
--init-file
--login
--noediting
--noprofile
--norc
--posix
--protected
--rcfile
--rpm-requires
--restricted
--verbose
--version
Shell options:
-irsD or -c command or -O shopt_option (invocation only)
-abefhkmnptuvxBCHP or -o option