Fix fatal from recent refactoring

diff --git a/includes/filerepo/ForeignAPIRepo.php b/includes/filerepo/ForeignAPIRepo.php
index d2f5c32..47bfaa2 100644 (file)
--- a/includes/filerepo/ForeignAPIRepo.php
+++ b/includes/filerepo/ForeignAPIRepo.php
@@ -240,7 +240,7 @@ class ForeignAPIRepo extends FileRepo {
                        $knownThumbUrls = array();
                } else {
                        if( isset( $knownThumbUrls[$sizekey] ) ) {
-                               wfDebug("Got thumburl from local cache. $thumbUrl \n");
+                               wfDebug("Got thumburl from local cache. {$knownThumbUrls[$sizekey]} \n");
                                return $knownThumbUrls[$sizekey];
                        }
                        /* This size is not yet known */