merge-tree: add comments to clarify what these functions are doing

diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index d98481a10c2e202257225eb48aac14ae6224cbec..76ffd4d4d6ad4f554fe1601e82f73865a4ced3d4 100755 (executable)
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 GVF=GIT-VERSION-FILE
-DEF_VER=v1.7.12.2
+DEF_VER=v1.8.1-rc0
 
 LF='
 '