Index: src/wp-admin/includes/ajax-actions.php
===================================================================
--- src/wp-admin/includes/ajax-actions.php	(revision 32504)
+++ src/wp-admin/includes/ajax-actions.php	(working copy)
@@ -2908,7 +2908,7 @@
 	}
 
 	if ( ! current_user_can( 'update_plugins' ) ) {
-		$status['error'] = __( 'You do not have sufficient permissions to update plugins on this site.' );
+		$status['error'] = __( 'You do not have sufficient permissions to update plugins for this site.' );
  		wp_send_json_error( $status );
 	}