diff --git a/Library/Homebrew/cask/cmd.rb b/Library/Homebrew/cask/cmd.rb
index f81026ffa9..a65cee3949 100644
--- a/Library/Homebrew/cask/cmd.rb
+++ b/Library/Homebrew/cask/cmd.rb
@@ -228,7 +228,7 @@ module Cask
       end
 
       def run(*)
-        exec @path, *ARGV[1..-1]
+        exec @path, *ARGV[1..]
       end
     end
 
diff --git a/Library/Homebrew/cask/cmd/abstract_command.rb b/Library/Homebrew/cask/cmd/abstract_command.rb
index c6b988eb4d..1646ddb943 100644
--- a/Library/Homebrew/cask/cmd/abstract_command.rb
+++ b/Library/Homebrew/cask/cmd/abstract_command.rb
@@ -37,6 +37,7 @@ module Cask
       end
 
       attr_accessor :args
+
       private :args=
 
       def initialize(*args)
diff --git a/Library/Homebrew/cask/cmd/internal_stanza.rb b/Library/Homebrew/cask/cmd/internal_stanza.rb
index 578e5f06f4..20235e13af 100644
--- a/Library/Homebrew/cask/cmd/internal_stanza.rb
+++ b/Library/Homebrew/cask/cmd/internal_stanza.rb
@@ -33,9 +33,11 @@ module Cask
       option "--inspect", :inspect, false
 
       attr_accessor :format
+
       private :format, :format=
 
       attr_accessor :stanza
+
       private :stanza, :stanza=
 
       def initialize(*)
diff --git a/Library/Homebrew/download_strategy.rb b/Library/Homebrew/download_strategy.rb
index ed3c11c4bb..3d8ca97571 100644
--- a/Library/Homebrew/download_strategy.rb
+++ b/Library/Homebrew/download_strategy.rb
@@ -23,6 +23,7 @@ class AbstractDownloadStrategy
 
   attr_reader :cache, :cached_location, :url
   attr_reader :meta, :name, :version, :shutup
+
   private :meta, :name, :version, :shutup
 
   def initialize(url, name, version, **meta)
diff --git a/Library/Homebrew/extend/os/linux/hardware/cpu.rb b/Library/Homebrew/extend/os/linux/hardware/cpu.rb
index 67dd402a1c..4f37ac614b 100644
--- a/Library/Homebrew/extend/os/linux/hardware/cpu.rb
+++ b/Library/Homebrew/extend/os/linux/hardware/cpu.rb
@@ -80,7 +80,7 @@ module Hardware
       # Compatibility with Mac method, which returns lowercase symbols
       # instead of strings
       def features
-        @features ||= flags[1..-1].map(&:intern)
+        @features ||= flags[1..].map(&:intern)
       end
 
       %w[aes altivec avx avx2 lm ssse3 sse4_2].each do |flag|
diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index f431b19dfa..faa86fceec 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -126,6 +126,7 @@ class Formula
   # The currently active {SoftwareSpec}.
   # @see #determine_active_spec
   attr_reader :active_spec
+
   protected :active_spec
 
   # A symbol to indicate currently active {SoftwareSpec}.
@@ -176,6 +177,7 @@ class Formula
   # Defaults to true.
   # @return [Boolean]
   attr_accessor :follow_installed_alias
+
   alias follow_installed_alias? follow_installed_alias
 
   # @private
diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index 9dbb75674e..3e281a7588 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -25,6 +25,7 @@ class FormulaInstaller
 
   def self.mode_attr_accessor(*names)
     attr_accessor(*names)
+
     private(*names)
     names.each do |name|
       predicate = "#{name}?"
@@ -38,6 +39,7 @@ class FormulaInstaller
   attr_reader :formula
   attr_accessor :options, :build_bottle
   attr_accessor :installed_as_dependency, :installed_on_request, :link_keg
+
   mode_attr_accessor :show_summary_heading, :show_header
   mode_attr_accessor :build_from_source, :force_bottle, :include_test
   mode_attr_accessor :ignore_deps, :only_deps, :interactive, :git
diff --git a/Library/Homebrew/keg.rb b/Library/Homebrew/keg.rb
index d40cf4457b..16818f0ce2 100644
--- a/Library/Homebrew/keg.rb
+++ b/Library/Homebrew/keg.rb
@@ -184,6 +184,7 @@ class Keg
   end
 
   attr_reader :path, :name, :linked_keg_record, :opt_record
+
   protected :path
 
   extend Forwardable
diff --git a/Library/Homebrew/requirement.rb b/Library/Homebrew/requirement.rb
index ebd2179a24..f593ca5753 100644
--- a/Library/Homebrew/requirement.rb
+++ b/Library/Homebrew/requirement.rb
@@ -151,6 +151,7 @@ class Requirement
     include BuildEnvironment::DSL
 
     attr_reader :env_proc, :build
+
     attr_rw :fatal, :cask, :download
 
     def satisfy(options = nil, &block)
diff --git a/Library/Homebrew/rubocops/cask/homepage_matches_url.rb b/Library/Homebrew/rubocops/cask/homepage_matches_url.rb
index 34c5261698..b260d5c730 100644
--- a/Library/Homebrew/rubocops/cask/homepage_matches_url.rb
+++ b/Library/Homebrew/rubocops/cask/homepage_matches_url.rb
@@ -40,6 +40,7 @@ module RuboCop
         private
 
         attr_reader :cask_block
+
         def_delegators :cask_block, :cask_node, :toplevel_stanzas,
                        :sorted_toplevel_stanzas
 
@@ -141,10 +142,10 @@ module RuboCop
           end
           home = homepage.downcase
           if (split_host = host.split(".")).length >= 3
-            host = split_host[-2..-1].join(".")
+            host = split_host[-2..].join(".")
           end
           if (split_home = homepage.split(".")).length >= 3
-            home = split_home[-2..-1].join(".")
+            home = split_home[-2..].join(".")
           end
           host == home
         end
diff --git a/Library/Homebrew/rubocops/cask/mixin/on_homepage_stanza.rb b/Library/Homebrew/rubocops/cask/mixin/on_homepage_stanza.rb
index 24d65737c3..f76d258faa 100644
--- a/Library/Homebrew/rubocops/cask/mixin/on_homepage_stanza.rb
+++ b/Library/Homebrew/rubocops/cask/mixin/on_homepage_stanza.rb
@@ -19,6 +19,7 @@ module RuboCop
         private
 
         attr_reader :cask_block
+
         def_delegators :cask_block,
                        :toplevel_stanzas
       end
diff --git a/Library/Homebrew/rubocops/cask/stanza_grouping.rb b/Library/Homebrew/rubocops/cask/stanza_grouping.rb
index 631d2c7e2a..aec43875c7 100644
--- a/Library/Homebrew/rubocops/cask/stanza_grouping.rb
+++ b/Library/Homebrew/rubocops/cask/stanza_grouping.rb
@@ -39,6 +39,7 @@ module RuboCop
         private
 
         attr_reader :cask_block, :line_ops
+
         def_delegators :cask_block, :cask_node, :toplevel_stanzas
 
         def add_offenses
diff --git a/Library/Homebrew/rubocops/cask/stanza_order.rb b/Library/Homebrew/rubocops/cask/stanza_order.rb
index bb8c153ba7..2a81bdb113 100644
--- a/Library/Homebrew/rubocops/cask/stanza_order.rb
+++ b/Library/Homebrew/rubocops/cask/stanza_order.rb
@@ -31,6 +31,7 @@ module RuboCop
         private
 
         attr_reader :cask_block
+
         def_delegators :cask_block, :cask_node, :toplevel_stanzas,
                        :sorted_toplevel_stanzas
 
diff --git a/Library/Homebrew/rubocops/extend/formula.rb b/Library/Homebrew/rubocops/extend/formula.rb
index 74eef626ee..81281cd63a 100644
--- a/Library/Homebrew/rubocops/extend/formula.rb
+++ b/Library/Homebrew/rubocops/extend/formula.rb
@@ -17,6 +17,7 @@ module RuboCop
       include RangeHelp
 
       attr_accessor :file_path
+
       @registry = Cop.registry
 
       # This method is called by RuboCop and is the main entry point