Cosmetic: nicer indentations for multiline strings

spec/lib/cellar/cellar_adapter_spec.rb

@@ -6,7 +6,8 @@ describe 'CellarAdapter' do
 
   describe 'parse_bucket_listing' do
     let(:response) do
-      '<ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
+      <<~EOS
+        <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
           <Name>example-bucket</Name>
           <Prefix></Prefix>
           <KeyCount>2</KeyCount>
@@ -28,6 +29,7 @@ describe 'CellarAdapter' do
             <StorageClass>STANDARD</StorageClass>
           </Contents>
         </ListBucketResult>'
+      EOS
     end
 
     subject { session.send(:parse_bucket_listing, response) }
@@ -37,16 +39,17 @@ describe 'CellarAdapter' do
 
   describe 'bulk_deletion_request_body' do
     let(:expected_response) do
-      '<?xml version="1.0" encoding="UTF-8"?>
-<Delete>
+      <<~EOS
+        <?xml version="1.0" encoding="UTF-8"?>
+        <Delete>
           <Object>
             <Key>chapi</Key>
           </Object>
           <Object>
             <Key>chapo</Key>
           </Object>
-</Delete>
-'
+        </Delete>
+      EOS
     end
 
     subject { session.send(:bulk_deletion_request_body, ['chapi', 'chapo']) }