Tidy test layout and namespaces

src/Polly.Caching.Distributed.SharedSpecs/NetStandardIDistributedCacheByteArrayProviderSpecs.cs

@@ -172,7 +172,7 @@ namespace Polly.Specs.Caching.Distributed
 
         #endregion
 
-        #region Put
+        #region Put async
 
         [Fact]
         public async Task PutAsync_should_put_item_using_passed_nonsliding_ttl()

src/Polly.Caching.Distributed.SharedSpecs/NetStandardIDistributedCacheStringProviderSpecs.cs

@@ -8,7 +8,7 @@ using Polly.Caching;
 using Polly.Caching.Distributed;
 using Xunit;
 
-namespace Polly.Specs.Caching.IDistributedCache
+namespace Polly.Specs.Caching.Distributed
 {
     public class NetStandardIDistributedCacheStringProviderSpecs
     {
@@ -166,7 +166,7 @@ namespace Polly.Specs.Caching.IDistributedCache
 
 #endregion
 
-#region Put
+        #region Put async
 
         [Fact]
         public async Task PutAsync_should_put_item_using_passed_nonsliding_ttl()

src/Polly.Caching.Distributed.SharedSpecs/TtlStrategyHelperTests.cs

@@ -6,7 +6,7 @@ using Polly.Caching.Distributed;
 using Polly.Caching;
 using Xunit;
 
-namespace Polly.Specs.Caching.IDistributedCache
+namespace Polly.Specs.Caching.Distributed
 {
     public class TtlStrategyHelperTests
     {