Formatting.

src/Compilers/Core/Portable/Diagnostic/Diagnostic.cs

@@ -362,7 +362,7 @@ public bool IsWarningAsError
         /// if there is no entry. This can be used to put diagnostic specific information you want 
         /// to pass around. for example, to corresponding fixer.
         /// </summary>
-        public virtual ImmutableDictionary<string, string> Properties 
+        public virtual ImmutableDictionary<string, string> Properties
             => ImmutableDictionary<string, string>.Empty;
 
         string IFormattable.ToString(string ignored, IFormatProvider formatProvider)
@@ -516,4 +516,4 @@ internal abstract class RequiredLanguageVersion : IMessageSerializable
     {
         public abstract override string ToString();
     }
-}
+}
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