git-rebase.txt: update note about directory rename detection and am

diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index 5aafb91946a1708d566f7f6f86e6a92b727a7342..e80102e3071fa6970b85445aadc81581d93e271c 100755 (executable)
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 GVF=GIT-VERSION-FILE
-DEF_VER=v2.20.0-rc0
+DEF_VER=v2.20.0-rc2
 
 LF='
 '