Ticket #19674: 19674.diff

src/wp-includes/general-template.php

@@ -914 +914 @@
          * @param string $sep Document title separator. Default '-'.
          */
         $sep = apply_filters( 'document_title_separator', '-' );
+        if ( empty( $sep ) ) {
+                $join = ' ';
+        } else {
+                $join = " $sep ";
+        }
 
         /**
          * Filter the parts of the document title.
@@ -931 +936 @@
          */
         $title = apply_filters( 'document_title_parts', $title );
 
-        $title = implode( " $sep ", array_filter( $title ) );
+        $title = implode( $join, array_filter( $title ) );
         $title = wptexturize( $title );
         $title = convert_chars( $title );
         $title = esc_html( $title );