[gtk-doc] example: update example Makefile.am

[Stefan Kost <stefkost src gnome org>]

commit d20056e4e6a458efd927c49486cef571929b4ae7
Author: Stefan Sauer <ensonic users sf net>
Date:   Thu Sep 8 18:49:07 2011 +0200

    example: update example Makefile.am

 examples/Makefile.am |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/examples/Makefile.am b/examples/Makefile.am
index 477b644..af0b491 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -18,10 +18,10 @@ DOC_MODULE=
 # The top-level SGML file. You can change this if you want to.
 DOC_MAIN_SGML_FILE=$(DOC_MODULE)-docs.sgml
 
-# Directories containing the source code, relative to $(srcdir).
+# Directories containing the source code.
 # gtk-doc will search all .c and .h files beneath these paths
 # for inline comments documenting functions and macros.
-# e.g. DOC_SOURCE_DIR=../../../gtk ../../../gdk
+# e.g. DOC_SOURCE_DIR=$(top_srcdir)/gtk $(top_srcdir)/gdk
 DOC_SOURCE_DIR=
 
 # Extra options to pass to gtkdoc-scangobj. Not normally needed.