Better indication that pg.pools is a private api

Author: brianc

lib/index.js

@@ -12,7 +12,7 @@ var PG = function(clientConstructor) {
   this.Client = clientConstructor;
   this.Query = this.Client.Query;
   this.Pool = Pool;
-  this.pools = [];
+  this._pools = [];
   this.Connection = Connection;
   this.types = require('pg-types');
 };
@@ -21,14 +21,14 @@ util.inherits(PG, EventEmitter);
 
 PG.prototype.end = function() {
   var self = this;
-  var keys = Object.keys(this.pools);
+  var keys = Object.keys(this._pools);
   var count = keys.length;
   if(count === 0) {
     self.emit('end');
   } else {
     keys.forEach(function(key) {
-      var pool = self.pools[key];
-      delete self.pools[key];
+      var pool = self._pools[key];
+      delete self._pools[key];
       pool.pool.drain(function() {
         pool.pool.destroyAllNow(function() {
           count--;
@@ -58,8 +58,8 @@ PG.prototype.connect = function(config, callback) {
   config.idleTimeoutMillis = config.idleTimeoutMillis || config.poolIdleTimeout || defaults.poolIdleTimeout;
   config.log = config.log || config.poolLog || defaults.poolLog;
 
-  this.pools[poolName] = this.pools[poolName] || new Pool(config, this.Client);
-  var pool = this.pools[poolName];
+  this._pools[poolName] = this._pools[poolName] || new Pool(config, this.Client);
+  var pool = this._pools[poolName];
   pool.connect(callback);
   if(!pool.listeners('error').length) {
     //propagate errors up to pg object