diff -ur tar-1.20.orig/src/tar.c tar-1.20/src/tar.c
--- tar-1.20.orig/src/tar.c	2008-04-14 14:03:13.000000000 +0200
+++ tar-1.20/src/tar.c	2008-08-28 12:24:20.560008838 +0200
@@ -831,6 +831,9 @@
 {
   int i;
   static char *vcs_file[] = {
+    /* BZR: */
+    ".bzr",
+    ".bzrignore",
     /* CVS: */
     "CVS",
     ".cvsignore",