Add use strict statements

This is going to improve the performance minimal and improves the safety of the code

benches/buffer_bench.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var source = new Buffer(100),
     dest = new Buffer(100), i, j, k, tmp, count = 1000000, bytes = 100;
     

benches/hiredis_parser.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var Parser = require('../lib/parser/hiredis').Parser;
 var assert = require('assert');
 

benches/re_sub_test.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var client = require('../index').createClient()
   , client2 = require('../index').createClient()
   , assert = require('assert');

benches/reconnect_test.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis = require("../index").createClient(null, null, {
 //    max_attempts: 4
 });

benches/stress/codec.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var json = {
 	encode: JSON.stringify,
 	decode: JSON.parse

benches/stress/speed/speed.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var msgpack = require('node-msgpack');
 var bison = require('bison');
 var codec = {

benches/sub_quit_test.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var client = require("redis").createClient(),
     client2 = require("redis").createClient();
 

connection_breaker.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var net = require('net');
 
 var proxyPort = 6379;

diff_multi_bench_output.js

@@ -1,5 +1,7 @@
 #!/usr/bin/env node
 
+'use strict';
+
 var colors = require('colors'),
     fs = require('fs'),
     _ = require('underscore'),

examples/auth.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis  = require("redis"),
     client = redis.createClient();
 

examples/backpressure_drain.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis = require("../index"),
     client = redis.createClient(null, null, {
         command_queue_high_water: 5,

examples/eval.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis = require("../index"),
     client = redis.createClient();
 

examples/extend.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis = require("redis"),
     client = redis.createClient();
 

examples/file.js

@@ -1,3 +1,5 @@
+'use strict';
+
 // Read a file from disk, store it in Redis, then read it back from Redis.
 
 var redis = require("redis"),

examples/mget.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var client = require("redis").createClient();
 
 client.mget(["sessions started", "sessions started", "foo"], function (err, res) {

examples/monitor.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var client  = require("../index").createClient(),
     util = require("util");
 

examples/multi.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis  = require("redis"),
     client = redis.createClient(), set_size = 20;
 

examples/multi2.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis  = require("redis"),
     client = redis.createClient(), multi;
 

examples/psubscribe.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis = require("redis"),
     client1 = redis.createClient(),
     client2 = redis.createClient(),

examples/pub_sub.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis = require("redis"),
     client1 = redis.createClient(), msg_count = 0,
     client2 = redis.createClient();

examples/scan.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis  = require("redis"),
     client = redis.createClient();
 

examples/simple.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis = require("redis"),
     client = redis.createClient();
 

examples/sort.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis = require("redis"),
     client = redis.createClient();
 

examples/subqueries.js

@@ -1,3 +1,5 @@
+'use strict';
+
 // Sending commands in response to other commands.
 // This example runs "type" against every key in the database
 //

examples/subquery.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var client = require("redis").createClient();
 
 function print_results(obj) {

examples/web_server.js

@@ -1,3 +1,5 @@
+'use strict';
+
 // A simple web server that generates dyanmic content based on responses from Redis
 
 var http = require("http"), server,
@@ -7,9 +9,9 @@ server = http.createServer(function (request, response) {
     response.writeHead(200, {
         "Content-Type": "text/plain"
     });
-    
+
     var redis_info, total_requests;
-    
+
     redis_client.info(function (err, reply) {
         redis_info = reply; // stash response in outer scope
     });

generate_commands.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var http = require("http"),
     fs = require("fs");
 

index.js

@@ -1,3 +1,5 @@
+'use strict';
+
 /*global Buffer require exports console setTimeout */
 
 var net = require("net"),

lib/commands.js

@@ -1,3 +1,5 @@
+'use strict';
+
 // This file was generated by ./generate_commands.js on Wed Apr 23 2014 14:51:21 GMT-0700 (PDT)
 module.exports = [
     "append",

lib/parser/hiredis.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var events = require("events"),
     util = require("../util"),
     hiredis = require("hiredis");

lib/parser/javascript.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var events = require("events"),
     util   = require("../util");
 

lib/queue.js

@@ -1,3 +1,5 @@
+'use strict';
+
 // Queue class adapted from Tim Caswell's pattern library
 // http://github.com/creationix/pattern/blob/master/lib/pattern/queue.js
 

lib/to_array.js

@@ -1,3 +1,5 @@
+'use strict';
+
 function to_array(args) {
     var len = args.length,
         arr = new Array(len), i;

lib/util.js

@@ -1,3 +1,5 @@
+'use strict';
+
 // Support for very old versions of node where the module was called "sys".  At some point, we should abandon this.
 
 var util;

multi_bench.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var redis = require("./index"),
     metrics = require("metrics"),
     num_clients = parseInt(process.argv[2], 10) || 5,

test/queue-test.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var assert = require("assert");
 var Queue = require('../lib/queue');
 

test/test.js

@@ -1,3 +1,5 @@
+'use strict';
+
 /*global require console setTimeout process Buffer */
 var PORT = 6379;
 var HOST = '127.0.0.1';