zygo: version strings that begin with a letter are now an error

(cherry picked from commit 786b25291717a7af315b2b3a0e3b3defbae118ee)
(cherry picked from commit 6e6f2a774fd0b147b353b79e6a5e8a3edc39174a)

Conflicts:

	zygo/make-kernel

diff --git a/zygo/make-kernel b/zygo/make-kernel
index 43e8554e346f31db4d0de0707f5d61e0df2ced1c..7aed6be10d784cdebc5a889fae82c9bc7b85ea83 100755 (executable)
--- a/zygo/make-kernel
+++ b/zygo/make-kernel
@@ -1,6 +1,6 @@
 #!/bin/bash
 set -xP
-rev=9zb${PWD##*-9zb}
+rev=zb${PWD##*-9zb}
 
 # Reread $PWD
 cd .