tests: check if the bookmarks extension is ignored stable

tests: check if the bookmarks extension is ignored

--- a/tests/test-bookmarks.t	Fri Feb 11 21:17:27 2011 -0600
+++ b/tests/test-bookmarks.t	Thu Feb 24 19:15:00 2011 +0100
@@ -222,6 +222,15 @@
   abort: bookmark 'foo:bar' contains illegal character
   [255]
 
+the bookmark extension should be ignored now that it is part of core
+
+  $ echo "[extensions]" >> $HGRCPATH
+  $ echo "bookmarks=" >> $HGRCPATH
+  $ hg bookmarks
+     X2                        1:925d80f479bb
+     Y                         2:db815d6d32e6
+   * Z                         2:db815d6d32e6
+     x  y                      2:db815d6d32e6
 test summary
 
   $ hg summary