Followup to r98847. Replacing .= with =

diff --git a/includes/ChangesList.php b/includes/ChangesList.php
index d64dbfd..5a797f6 100644 (file)
--- a/includes/ChangesList.php
+++ b/includes/ChangesList.php
@@ -206,14 +206,14 @@ class ChangesList extends ContextSource {
                }
 
                if ( $szdiff === 0 ) {
-                       $formattedSizeClass .= 'mw-plusminus-null';
+                       $formattedSizeClass = 'mw-plusminus-null';
                }
                if ( $szdiff > 0 ) {
                        $formattedSize = '+' . $formattedSize;
-                       $formattedSizeClass .= 'mw-plusminus-pos';
+                       $formattedSizeClass = 'mw-plusminus-pos';
                }
                if ( $szdiff < 0 ) {
-                       $formattedSizeClass .= 'mw-plusminus-neg';
+                       $formattedSizeClass = 'mw-plusminus-neg';
                }
                return Xml::element($tag,
                        array('dir' => 'ltr', 'class' => $formattedSizeClass),