Fix test bug.

lib/memcached/memcached.rb

@@ -421,14 +421,13 @@ Please note that when pipelining is enabled, setter and deleter methods do not r
   def set_servers(servers)
     add_method = options[:use_udp] ? "memcached_server_add_udp_with_weight" : "memcached_server_add_with_weight"
     Array(servers).each_with_index do |server, index|
-      debugger
       if server.is_a?(String) and File.socket?(server)
         Lib.memcached_server_add_unix_socket_with_weight(@struct, server, options[:default_weight].to_i)
       elsif server.is_a?(String) and server =~ /^[\w\d\.-]+(:\d{1,5}){0,2}$/
         host, port, weight = server.split(":")
         Lib.memcached_server_add_with_weight(@struct, host, port.to_i, (weight || options[:default_weight]).to_i)
       else
-        raise ArgumentError, "Servers must be either in the format 'host:port[:weight]' (e.g., 'localhost:11211' or  'localhost:11211:10') for a network server, or a valid pathname (e.g., /var/run/memcached) for a Unix domain socket."
+        raise ArgumentError, "Servers must be either in the format 'host:port[:weight]' (e.g., 'localhost:11211' or  'localhost:11211:10') for a network server, or a valid path to a Unix domain socket (e.g., /var/run/memcached)."
       end
     end
     # For inspect

test/unit/memcached_test.rb

@@ -7,7 +7,7 @@ require 'benchmark'
 class MemcachedTest < Test::Unit::TestCase
 
   def setup
-    @servers = ['localhost:43042', 'localhost:43043',UNIX_SOCKET_NAME]
+    @servers = ['localhost:43042', 'localhost:43043', "#{UNIX_SOCKET_NAME}0"]
 
     # Maximum allowed prefix key size for :hash_with_prefix_key_key => false
     @prefix_key = 'prefix_key_'

test/unit/rails_test.rb

@@ -4,7 +4,7 @@ require "#{File.dirname(__FILE__)}/../test_helper"
 class RailsTest < Test::Unit::TestCase
 
   def setup
-    @servers = ['127.0.0.1:43042', '127.0.0.1:43043',UNIX_SOCKET_NAME]
+    @servers = ['127.0.0.1:43042', '127.0.0.1:43043', "#{UNIX_SOCKET_NAME}0"]
     @namespace = 'rails_test'
     @cache = Memcached::Rails.new(:servers => @servers, :namespace => @namespace)
     @value = OpenStruct.new(:a => 1, :b => 2, :c => GenericClass)