--- tar.orig	2015-02-26 13:29:36.296648958 -0800
+++ tar	2015-02-26 13:30:10.572650261 -0800
@@ -16,6 +16,8 @@
 
     case ${words[1]} in
         --*)
+	    _filedir
+	    return 0
             ;;
         ?(-)*[cr]*f)
             if [[ $cword -eq 2 ]]; then