Minor whitespace cleanup.

src/AST/Comment.cs

@@ -246,7 +246,7 @@ namespace CppSharp.AST
 
         public VerbatimBlockComment()
         {
-            Lines = new List<VerbatimBlockLineComment>();    
+            Lines = new List<VerbatimBlockLineComment>();
         }
 
         public override void Visit<T>(ICommentVisitor<T> visitor)
@@ -380,7 +380,7 @@ namespace CppSharp.AST
 
         public InlineCommandComment()
         {
-            Arguments = new List<Argument>();    
+            Arguments = new List<Argument>();
         }
 
         public override void Visit<T>(ICommentVisitor<T> visitor)