do not write null sha1s to on-disk index

diff --git a/git-gui/GIT-VERSION-GEN b/git-gui/GIT-VERSION-GEN
index b3f937eace99ce1e25afbdbea678e9f6926dbc75..65709437ff06a2b371fe70fd846922c73ebc23b0 100755 (executable)
--- a/git-gui/GIT-VERSION-GEN
+++ b/git-gui/GIT-VERSION-GEN
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 GVF=GIT-VERSION-FILE
-DEF_VER=0.12.GITGUI
+DEF_VER=0.16.GITGUI
 
 LF='
 '