[pygobject] autogen.sh: Source gnome-autogen to fix out of source builddir

[Martin Pitt <martinpitt src gnome org>]

commit 755b2e6fc635489d98d48254ea60b2631b43dfbd
Author: Alban Browaeys <prahal yahoo com>
Date:   Thu Feb 28 18:57:21 2013 +0100

    autogen.sh: Source gnome-autogen to fix out of source builddir
    
    https://bugzilla.gnome.org/show_bug.cgi?id=694889

 autogen.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index 420917c..3c7605d 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -25,5 +25,5 @@ which gnome-autogen.sh || {
     exit 1
 }
 
-gnome-autogen.sh "$EXTRA_ARGS" "$@"
+. gnome-autogen.sh "$EXTRA_ARGS" "$@"