Remove All CVS Id Strings Possible Using a Script

Script does what is expected and tries to do it as
smartly as possible.

+ remove occurrences of two blank comment lines
  next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
  contain CVS Ids
+ If the processing left a blank line at the top of
  a file, it was removed.

cpukit/libnetworking/vm/vm_kern.h

@@ -60,9 +60,6 @@
  * $FreeBSD: src/sys/vm/vm_kern.h,v 1.28 2005/01/07 02:29:27 imp Exp $
  */
 
-/*
- * $Id$
- */
 
 #ifndef _VM_VM_KERN_H_
 #define _VM_VM_KERN_H_ 1