Don't add spurious {} to CW posts

src/syndication.rs

@@ -95,7 +95,7 @@ pub fn channel_for_posts_page(
         if item.cws.is_empty() {
             body_text.push_str(&item.plain_body);
         } else {
-            body_text.push_str("Sensitive post, body text omitted. Content warnings:{}");
+            body_text.push_str("Sensitive post, body text omitted. Content warnings:");
             for cw in item.cws {
                 body_text.push_str(&format!(" {},", cw));
             }