Fix typos in comments. Remove trailing blanks.

lib-src/grep-changelog

 #! /usr/bin/perl
-# $Id: grep-changelog,v 1.1 1999/08/10 13:33:49 gerd Exp $
+# $Id: grep-changelog,v 1.2 2000/05/05 13:19:05 gerd Exp $
 
-# Copyright (C) 1999 Free Software Foundation, Inc.
+# Copyright (C) 1999, 2000 Free Software Foundation, Inc.
 #
 # This file is part of GNU Emacs.
 #
@@ -110,7 +110,7 @@ sub header_match_p ($) {
 }
 
 
-# Value is non-zero if ENTRY matches the ciiteria specified on the
+# Value is non-zero if ENTRY matches the criteria specified on the
 # command line, i.e. it matches $regexp, and it doesn't match
 # $exclude.
 
@@ -217,4 +217,4 @@ if (@ARGV > 0) {
 }
 
 
-# gre-changelog ends here.
+# grep-changelog ends here.