Update more requires to relative

Author: HarlemSquirrel

net-ldap.gemspec

@@ -1,7 +1,7 @@
 # -*- encoding: utf-8 -*-
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
-require 'net/ldap/version'
+require_relative 'lib/net/ldap/version'
 
 Gem::Specification.new do |s|
   s.name = %q{net-ldap}

test/test_dn.rb

@@ -1,5 +1,5 @@
 require_relative 'test_helper'
-require 'net/ldap/dn'
+require_relative '../lib/net/ldap/dn'
 
 class TestDN < Test::Unit::TestCase
   def test_escape

test/test_helper.rb

@@ -1,6 +1,6 @@
 # Add 'lib' to load path.
 require 'test/unit'
-require 'net/ldap'
+require_relative '../lib/net/ldap'
 require 'flexmock/test_unit'
 
 # Whether integration tests should be run.

test/test_snmp.rb

@@ -1,7 +1,7 @@
 # $Id: testsnmp.rb 231 2006-12-21 15:09:29Z blackhedd $
 
 require_relative 'test_helper'
-require 'net/snmp'
+require_relative '../lib/net/snmp'
 
 class TestSnmp < Test::Unit::TestCase
   def self.raw_string(s)