change root login shell to ksh as promised; ok many

src/etc/master.passwd

@@ -1,4 +1,4 @@
-root::0:0:daemon:0:0:Charlie &:/root:/bin/csh
+root::0:0:daemon:0:0:Charlie &:/root:/bin/ksh
 daemon:*:1:1::0:0:The devil himself:/root:/sbin/nologin
 operator:*:2:5::0:0:System &:/operator:/sbin/nologin
 bin:*:3:7::0:0:Binaries Commands and Source,,,:/:/sbin/nologin