Minor clarification by moving initialization to constructor

tests/NRedisStack.Tests/RedisFixture.cs

@@ -4,17 +4,18 @@ namespace NRedisStack.Tests
 {
     public class RedisFixture : IDisposable
     {
-
-
-        // Set the enviroment variable to specify your own alternet host and port:
-        string redis = Environment.GetEnvironmentVariable("REDIS") ?? "localhost:6379";
-        public RedisFixture() => Redis = ConnectionMultiplexer.Connect($"{redis}");
+        public RedisFixture()
+        {
+            // Set the enviroment variable to specify your own alternet host and port:
+            var redisConnectionString = Environment.GetEnvironmentVariable("REDIS") ?? "localhost:6379";
+            Redis = ConnectionMultiplexer.Connect(redisConnectionString);
+        }
 
         public void Dispose()
         {
             Redis.Close();
         }
 
-        public ConnectionMultiplexer Redis { get; private set; }
+        public ConnectionMultiplexer Redis { get; }
     }
 }