replace NULL with null

Another global search-and-replace update. Here, I've replaced the PHP
keyword 'NULL' with its lowercase version. This is another PEAR code
standards change.

darcs-hash:20081223192129-84dde-4a0182e0ec16a01ad88745ad3e08f7cb501aee0b.gz

1 files changed, 1 insertions, 1 deletions

diff --git a/actions/publicrss.php b/actions/publicrss.php
index fa86de1d9..764f0fae2 100644
--- a/actions/publicrss.php
+++ b/actions/publicrss.php
@@ -52,6 +52,6 @@ class PublicrssAction extends Rss10Action {
     }
 
     function get_image() {
-        return NULL;
+        return null;
     }
 }
\ No newline at end of file