tree-diff: allow diff_tree_sha1 to accept NULL sha1

diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index 060afdd93b17b67a063576ef4c2b68a3d964608c..38b939b6362784234d968967fced7682f0b81d02 100755 (executable)
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 GVF=GIT-VERSION-FILE
-DEF_VER=v1.8.5-rc2
+DEF_VER=v1.9-rc2
 
 LF='
 '