print errno when reporting a system call error

diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index e83f591a7bc1f525627557c59648da579594c1de..598353ea087804d24438cf8e7f3a1236ece347d9 100755 (executable)
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 GVF=GIT-VERSION-FILE
-DEF_VER=v2.12.2
+DEF_VER=v2.13.0-rc1
 
 LF='
 '