fix spacing before comment

Author: rdw-msft

src/node_builtins.cc

@@ -151,7 +151,7 @@ BuiltinLoader::BuiltinCategories BuiltinLoader::GetBuiltinCategories() const {
         "internal/test/binding", "internal/v8_prof_polyfill",
         "internal/v8_prof_processor",
 #if !_WIN32
-        "internal/code_integrity", // Only implemented on Windows
+        "internal/code_integrity",  // Only implemented on Windows
 #endif
   };