[gnome-shell] .gitignore: add m4/

[Dan Winship <danw src gnome org>]

commit 75a677701d3566d74be4fc9c7de8233d8db69772
Author: Dan Winship <danw gnome org>
Date:   Fri Feb 12 10:19:31 2010 -0500

    .gitignore: add m4/

 .gitignore |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index 9eca2b6..5f61616 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,6 +22,7 @@ intltool-extract.in
 intltool-merge.in
 intltool-update.in
 libtool
+m4/
 omf.make
 po/*.gmo
 po/Makefile.in.in