Index: wp-includes/author-template.php
===================================================================
--- wp-includes/author-template.php	(revision 22549)
+++ wp-includes/author-template.php	(working copy)
@@ -275,7 +275,6 @@
 	);
 
 	$args = wp_parse_args( $args, $defaults );
-	extract( $args, EXTR_SKIP );
 
 	$return = '';
 
@@ -290,72 +289,72 @@
 	foreach ( $authors as $author_id ) {
 		$author = get_userdata( $author_id );
 
-		if ( $exclude_admin && 'admin' == $author->display_name )
+		if ( $args['exclude_admin'] && 'admin' == $author->display_name )
 			continue;
 
 		$posts = isset( $author_count[$author->ID] ) ? $author_count[$author->ID] : 0;
 
-		if ( !$posts && $hide_empty )
+		if ( !$posts && $args['hide_empty'] )
 			continue;
 
 		$link = '';
 
-		if ( $show_fullname && $author->first_name && $author->last_name )
+		if ( $args['show_fullname'] && $author->first_name && $author->last_name )
 			$name = "$author->first_name $author->last_name";
 		else
 			$name = $author->display_name;
 
-		if ( !$html ) {
+		if ( !$args['html'] ) {
 			$return .= $name . ', ';
 
 			continue; // No need to go further to process HTML.
 		}
 
-		if ( 'list' == $style ) {
+		if ( 'list' == $args['style'] ) {
 			$return .= '<li>';
 		}
 
 		$link = '<a href="' . get_author_posts_url( $author->ID, $author->user_nicename ) . '" title="' . esc_attr( sprintf(__("Posts by %s"), $author->display_name) ) . '">' . $name . '</a>';
 
-		if ( !empty( $feed_image ) || !empty( $feed ) ) {
+		if ( !empty( $args['feed_image'] ) || !empty( $args['feed'] ) ) {
 			$link .= ' ';
-			if ( empty( $feed_image ) ) {
+			if ( empty( $args['feed_image'] ) ) {
 				$link .= '(';
 			}
 
 			$link .= '<a href="' . get_author_feed_link( $author->ID ) . '"';
 
 			$alt = $title = '';
-			if ( !empty( $feed ) ) {
-				$title = ' title="' . esc_attr( $feed ) . '"';
-				$alt = ' alt="' . esc_attr( $feed ) . '"';
-				$name = $feed;
+			if ( !empty( $args['feed'] ) ) {
+				$title = ' title="' . esc_attr( $args['feed'] ) . '"';
+				$alt = ' alt="' . esc_attr( $args['feed'] ) . '"';
+				$name = $args['feed'];
 				$link .= $title;
 			}
 
 			$link .= '>';
 
-			if ( !empty( $feed_image ) )
-				$link .= '<img src="' . esc_url( $feed_image ) . '" style="border: none;"' . $alt . $title . ' />';
+			if ( !empty( $args['feed_image'] ) )
+				$link .= '<img src="' . esc_url( $args['feed_image'] ) . '" style="border: none;"' . $alt . $title . ' />';
 			else
 				$link .= $name;
 
 			$link .= '</a>';
 
-			if ( empty( $feed_image ) )
+			if ( empty( $args['feed_image'] ) )
 				$link .= ')';
 		}
 
-		if ( $optioncount )
+		if ( $args['optioncount'] )
 			$link .= ' ('. $posts . ')';
 
 		$return .= $link;
-		$return .= ( 'list' == $style ) ? '</li>' : ', ';
+		$return .= ( 'list' == $args['style'] ) ? '</li>' : ', ';
 	}
 
 	$return = rtrim($return, ', ');
 
-	if ( !$echo )
+	if ( !$args['echo'] )
 		return $return;
 
 	echo $return;