mercurial/help/patterns.txt

--- a/mercurial/help/patterns.txt	Mon Apr 23 00:33:09 2012 +0900
+++ b/mercurial/help/patterns.txt	Mon Apr 23 00:38:22 2012 +0900
@@ -6,6 +6,10 @@
 
 Alternate pattern notations must be specified explicitly.
 
+.. note::
+  Patterns specified in ``.hgignore`` are not rooted. Please see
+  :hg:`help hgignore` for details.
+
 To use a plain path name without any pattern matching, start it with
 ``path:``. These path names must completely match starting at the
 current repository root.