[grilo] build: do not use bash to invoke gnome-autogen.sh

[Juan A. Suarez Romero <jasuarez src gnome org>]

commit 58a61dca99837b3c0a46e93e6d8203da63ef5e45
Author: Juan A. Suarez Romero <jasuarez igalia com>
Date:   Sat Mar 29 21:51:41 2014 +0000

    build: do not use bash to invoke gnome-autogen.sh
    
    This allow to build in a different directory.

 autogen.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index 149d4c1..4fdb039 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -20,4 +20,4 @@ which gnome-autogen.sh || {
 REQUIRED_AUTOMAKE_VERSION=1.10 \
 USE_GNOME2_MACROS=1 \
 USE_COMMON_DOC_BUILD=yes \
-bash gnome-autogen.sh "$@"
+. gnome-autogen.sh "$@"