Correct nits in d8 ArrayBuffer() implementation

src/d8.cc

Index: src/d8.cc
diff --git a/src/d8.cc b/src/d8.cc
index 927d536f8b10d458933f771b7b255114834c82a6..97828a4ac4c6027d4fef17ff42959a7981772fa9 100644
--- a/src/d8.cc
+++ b/src/d8.cc
@@ -387,8 +387,8 @@ Handle<Value> Shell::CreateExternalArray(const Arguments& args,
     }
 
     if (offset > array_buffer_length) {
-        return ThrowException(
-            String::New("byteOffset must be less than ArrayBuffer length."));
+      return ThrowException(
+          String::New("byteOffset must be less than ArrayBuffer length."));
     }
 
     if (args.Length() == 2) {