Fix Style/MultilineWhenThen cop.

.rubocop_todo.yml

@@ -176,12 +176,6 @@ Style/ModuleFunction:
   Exclude:
     - 'lib/zip.rb'
 
-# Offense count: 2
-# Cop supports --auto-correct.
-Style/MultilineWhenThen:
-  Exclude:
-    - 'lib/zip/output_stream.rb'
-
 # Offense count: 56
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle.

lib/zip/output_stream.rb

@@ -150,9 +150,9 @@ module Zip
 
     def get_compressor(entry, level)
       case entry.compression_method
-      when Entry::DEFLATED then
+      when Entry::DEFLATED
         ::Zip::Deflater.new(@output_stream, level, @encrypter)
-      when Entry::STORED then
+      when Entry::STORED
         ::Zip::PassThruCompressor.new(@output_stream)
       else
         raise ::Zip::CompressionMethodError,