[gnome-shell] Don't use bash syntax pointlessly. Fixes this to work under real /bin/sh.

[Dan Winship <danw src gnome org>]

commit 3c7f378e2f5281fc145521af719e234c3e6bcf28
Author: Dan Winship <danw gnome org>
Date:   Tue Apr 7 09:37:29 2009 -0400

    Don't use bash syntax pointlessly. Fixes this to work under real /bin/sh.
    
    http://bugzilla.gnome.org/show_bug.cgi?id=578195
---
 autogen.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/autogen.sh b/autogen.sh
index 6f856fb..9fd4a8d 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-(cd $(dirname $0);
+(cd `dirname $0`;
     touch ChangeLog NEWS &&
     autoreconf --install --symlink &&
     autoreconf &&