[libdmapsharing] autogen.sh: touch ChangeLog before running GNU autotools

[W. Michael Petullo <wmpetullo src gnome org>]

commit c123492837d3b869f101536b13decd611e2000c3
Author: W. Michael Petullo <mike flyn org>
Date:   Fri Apr 12 13:28:03 2013 -0500

    autogen.sh: touch ChangeLog before running GNU autotools
    
    Signed-off-by: W. Michael Petullo <mike flyn org>

 autogen.sh |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index e5b0dd3..a9f4902 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+touch ChangeLog
+
 gtkdocize || exit 1
 aclocal -I m4 || exit 1
 autoconf || exit 1
@@ -8,6 +10,7 @@ libtoolize --force || glibtoolize --force || exit 1
 automake -a || exit 1
 ./configure --enable-maintainer-mode $* || exit 1
 
+# Now populate ChangeLog.
 git log   >  ChangeLog
 cat <<EOF >> ChangeLog