rubocop: cleanup rules, fixes, update to ~> 0.47

Author: toy

.rubocop.yml

@@ -4,7 +4,7 @@ AllCops:
     - 'vendor/**/*'
 
 Lint/EndAlignment:
-  AlignWith: variable
+  EnforcedStyleAlignWith: variable
 
 Lint/UnneededSplatExpansion:
   Enabled: false
@@ -30,14 +30,18 @@ Metrics/MethodLength:
 Metrics/PerceivedComplexity:
   Max: 8
 
+Security/MarshalLoad:
+  Exclude:
+    - 'script/worker_analysis'
+
 Style/AccessModifierIndentation:
   EnforcedStyle: outdent
 
 Style/Alias:
   EnforcedStyle: prefer_alias_method
 
 Style/CaseIndentation:
-  IndentWhenRelativeTo: end
+  EnforcedStyle: end
 
 Style/DotPosition:
   EnforcedStyle: trailing

image_optim.gemspec

@@ -29,6 +29,6 @@ EOF
   s.add_development_dependency 'image_optim_pack', '~> 0.2', '>= 0.2.2'
   s.add_development_dependency 'rspec', '~> 3.0'
   if RUBY_VERSION >= '2.0'
-    s.add_development_dependency 'rubocop', '~> 0.37'
+    s.add_development_dependency 'rubocop', '~> 0.47'
   end
 end