Set layout to null to suppress warning

yous · yous · commit 2d40f51bd2d0 · 2014-08-13T02:44:23.000+09:00
Not applied in 0f16604.
diff --git a/.themes/classic/source/_includes/custom/category_feed.xml b/.themes/classic/source/_includes/custom/category_feed.xml
@@ -1,5 +1,5 @@
 ---
-layout: nil
+layout: null
 ---
 <?xml version="1.0" encoding="utf-8"?>
 <feed xmlns="http://www.w3.org/2005/Atom">
