--- a/hgext/gpg.py	Fri Feb 22 11:28:14 2008 +0100
+++ b/hgext/gpg.py	Fri Feb 22 21:18:48 2008 +0100
@@ -198,6 +198,8 @@
 
     If no revision is given, the parent of the working directory is used,
     or tip if no revision is checked out.
+
+    See 'hg help dates' for a list of formats valid for -d/--date.
     """
 
     mygpg = newgpg(ui, **opts)