Remove the last __dirnames in requires

Follow-up to eeb62ba.

Author: charmander

packages/pg/script/create-test-tables.js

@@ -1,6 +1,6 @@
 'use strict'
-var args = require(__dirname + '/../test/cli')
-var pg = require(__dirname + '/../lib')
+var args = require('../test/cli')
+var pg = require('../lib')
 
 var people = [
   { name: 'Aaron', age: 10 },

packages/pg/script/dump-db-types.js

@@ -1,6 +1,6 @@
 'use strict'
-var pg = require(__dirname + '/../lib')
-var args = require(__dirname + '/../test/cli')
+var pg = require('../lib')
+var args = require('../test/cli')
 
 var queries = ['select CURRENT_TIMESTAMP', "select interval '1 day' + interval '1 hour'", "select TIMESTAMP 'today'"]
 

packages/pg/script/list-db-types.js

@@ -1,5 +1,5 @@
 'use strict'
-var helper = require(__dirname + '/../test/integration/test-helper')
+var helper = require('../test/integration/test-helper')
 var pg = helper.pg
 pg.connect(
   helper.config,