BUG#1364 Backport whitespace regex from 1.55.2.15

diff --git a/includes/Title.php b/includes/Title.php
index 7e32e6b..9be6415 100644 (file)
--- a/includes/Title.php
+++ b/includes/Title.php
@@ -1073,7 +1073,7 @@ class Title {
 
                # Clean up whitespace
                #
-               $t = preg_replace( '/[\\s_]+/', '_', $this->mDbkeyform );
+               $t = preg_replace( '/[ _]+/', '_', $this->mDbkeyform );
                $t = trim( $t, '_' );
 
                if ( '' == $t ) {