Address most of rubocop's nits

lib/metasploit/framework/aws/client.rb

@@ -6,6 +6,7 @@ module Metasploit
       module Client
         USER_AGENT = "aws-sdk-ruby2/2.6.27 ruby/2.3.2 x86_64-darwin15"
         include Msf::Exploit::Remote::HttpClient
+
         # because Post modules require these to be defined when including HttpClient
         def register_autofilter_ports(ports=[]); end
         def register_autofilter_hosts(ports=[]); end
@@ -48,7 +49,7 @@ module Metasploit
           if headers.nil? || !headers.instance_of?(Hash) || body_digest.nil? || !body_digest.instance_of?(String)
             return nil, nil
           end
-          headers_block = headers.sort_by(&:first).map do |k,v|
+          headers_block = headers.sort_by(&:first).map do |k, v|
             v = "#{v},#{v}" if k == 'Host'
             "#{k.downcase}:#{v}"
           end.join("\n")
@@ -76,8 +77,8 @@ module Metasploit
 
         def body(vars_post)
           pstr = ""
-          vars_post.each_pair do |var,val|
-            pstr << '&' if pstr.length > 0
+          vars_post.each_pair do |var, val|
+            pstr << '&' unless pstr.empty?
             pstr << var
             pstr << '='
             pstr << val

modules/post/multi/escalate/aws_create_iam_user.rb

@@ -1,3 +1,8 @@
+##
+# This module requires Metasploit: http://metasploit.com/download
+# Current source: https://github.com/rapid7/metasploit-framework
+##
+
 require 'msf/core'
 require 'metasploit/framework/aws/client'
 
@@ -5,26 +10,30 @@ class MetasploitModule < Msf::Post
 
   include Metasploit::Framework::Aws::Client
 
-  def initialize(info={})
-    super(update_info(info,
-      'Name'           => "Create an AWS IAM User",
-      'Description'    => %q{
-        This module will attempt to create an AWS (Amazon Web Services) IAM
-        (Identity and Access Management) user with Admin privileges.
-      },
-      'License'        => MSF_LICENSE,
-      'Platform'      => %w(unix),
-      'SessionTypes'  => %w(shell meterpreter),
-      'Author'         => ['Javier Godinez <godinezj[at]gmail.com>'],
-      'References'     => [
-        [ 'URL', 'https://github.com/devsecops/bootcamp/raw/master/Week-6/slides/june-DSO-bootcamp-week-six-lesson-three.pdf' ]
-      ]
-    ))
+  def initialize(info = {})
+    super(
+      update_info(
+        info,
+        'Name'           => "Create an AWS IAM User",
+        'Description'    => %q{
+          This module will attempt to create an AWS (Amazon Web Services) IAM
+          (Identity and Access Management) user with Admin privileges.
+        },
+        'License'        => MSF_LICENSE,
+        'Platform'       => %w(unix),
+        'SessionTypes'   => %w(shell meterpreter),
+        'Author'         => ['Javier Godinez <godinezj[at]gmail.com>'],
+        'References'     => [
+          [ 'URL', 'https://github.com/devsecops/bootcamp/raw/master/Week-6/slides/june-DSO-bootcamp-week-six-lesson-three.pdf' ]
+        ]
+      )
+    )
 
     register_options(
       [
         OptString.new('IAM_USERNAME', [false, 'Name of the user to be created (leave empty or unset to use a random name)', ''])
-      ])
+      ]
+    )
     register_advanced_options(
       [
         OptString.new('METADATA_IP', [true, 'The metadata service IP', '169.254.169.254']),
@@ -36,11 +45,11 @@ class MetasploitModule < Msf::Post
         OptString.new('SSL', [true, 'AWS IAM Endpoint SSL', true]),
         OptString.new('IAM_GROUP_POL', [true, 'IAM group policy to use', '{"Version": "2012-10-17", "Statement": [{"Effect": "Allow", "Action": "*", "Resource": "*" }]}']),
         OptString.new('Region', [true, 'The default region', 'us-east-1' ])
-      ])
+      ]
+    )
     deregister_options('VHOST')
   end
 
-
   def run
     # setup creds for making IAM API calls
     creds = metadata_creds
@@ -119,4 +128,3 @@ class MetasploitModule < Msf::Post
     {}
   end
 end
-