address rubocop issues

.rubocop.yml

@@ -1,4 +1,4 @@
-# Rubocop,  we're buddies and all,  but we're going to have to disagree on the following -
+# Rubocop, we're buddies and all, but we're going to have to disagree on the following -
 
 # Allow compact class definitions
 Style/ClassAndModuleChildren:
@@ -97,3 +97,11 @@ Style/SpaceBeforeFirstArg:
 AllCops:
   Include:
     - '**/*.rb'
+
+# allow longer blocks
+Metrics/BlockLength:
+  Max: 50
+
+# allow longer argument lists
+Metrics/ParameterLists:
+  Max: 6

bin/aws_cleaner.rb

@@ -69,7 +69,7 @@ def config(file)
     if @instance_id
       if @config[:webhooks]
         @config[:webhooks].each do |hook, hook_config|
-          if AwsCleaner::Webhooks::fire_webhook(hook_config, @config, @instance_id)
+          if AwsCleaner::Webhooks.fire_webhook(hook_config, @config, @instance_id)
             puts "Successfully ran webhook #{hook}"
           else
             puts "Failed to run webhook #{hook}"

lib/aws_cleaner/aws_cleaner.rb

@@ -142,7 +142,7 @@ def self.notify_chat(msg, config)
 
   module Webhooks
     # generate the URL for the webhook
-    def self.generate_template(item, template_variable_method, template_variable_argument, template_variable, config, instance_id)
+    def self.generate_template(item, template_variable_method, _template_variable_argument, template_variable, config, instance_id)
       if template_variable_method == 'get_chef_fqdn'
         replacement = AwsCleaner::Chef.get_chef_fqdn(instance_id, config)
       elsif template_variable_method == 'get_chef_node_name'