Update copyright text of srfi reference implementations

A couple of them now adopt standard MIT license.

lib/srfi/29/format.scm

@@ -2,30 +2,27 @@
 
 ;; Taken from SRFI-29 reference implementation.
 ;;
-;; Copyright (C) Scott G. Miller (2002). All Rights Reserved.
+;; (c) 2002 Scott G. Miller.
 ;;
-;; This document and translations of it may be copied and furnished to
-;; others, and derivative works that comment on or otherwise explain it
-;; or assist in its implementation may be prepared, copied, published and
-;; distributed, in whole or in part, without restriction of any kind,
-;  provided that the above copyright notice and this paragraph are
-;; included on all such copies and derivative works. However, this
-;; document itself may not be modified in any way, such as by removing
-;; the copyright notice or references to the Scheme Request For
-;; Implementation process or editors, except as needed for the purpose
-;; of developing SRFIs in which case the procedures for copyrights
-;; defined in the SRFI process must be followed, or as required to
-;; translate it into languages other than English.
+;; Permission is hereby granted, free of charge, to any person obtaining
+;; a copy of this software and associated documentation files (the
+;; "Software"), to deal in the Software without restriction, including
+;; without limitation the rights to use, copy, modify, merge, publish,
+;; distribute, sublicense, and/or sell copies of the Software, and to
+;; permit persons to whom the Software is furnished to do so, subject to
+;; the following conditions:
 ;;
-;; The limited permissions granted above are perpetual and will not be
-;; revoked by the authors or their successors or assigns.
+;; The above copyright notice and this permission notice (including the
+;; next paragraph) shall be included in all copies or substantial
+;; portions of the Software.
 ;;
-;; This document and the information contained herein is provided on an
-;; "AS IS" basis and THE AUTHOR AND THE SRFI EDITORS DISCLAIM ALL
-;; WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY
-;; WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE
-;; ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
-;; FOR A PARTICULAR PURPOSE
+;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+;; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+;; LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+;; OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+;; WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 (define-module srfi.29.format
   (export format))

lib/srfi/7.scm

@@ -2,19 +2,25 @@
 ;; Gauche module stuff added by Alex Shinn.
 
 ;; Copyright (C) Richard Kelsey (1999). All Rights Reserved.
-
-;; This document and translations of it may be copied and furnished to
-;; others, and derivative works that comment on or otherwise explain it or
-;; assist in its implementation may be prepared, copied, published and
-;; distributed, in whole or in part, without restriction of any kind,
-;; provided that the above copyright notice and this paragraph are included
-;; on all such copies and derivative works. However, this document itself
-;; may not be modified in any way, such as by removing the copyright notice
-;; or references to the Scheme Request For Implementation process or
-;; editors, except as needed for the purpose of developing SRFIs in which
-;; case the procedures for copyrights defined in the SRFI process must be
-;; followed, or as required to translate it into languages other than
-;; English.
+;;
+;; Permission is hereby granted, free of charge, to any person obtaining
+;; a copy of this software and associated documentation files (the
+;; "Software"), to deal in the Software without restriction, including
+;; without limitation the rights to use, copy, modify, merge, publish,
+;; distribute, sublicense, and/or sell copies of the Software, and to
+;; permit persons to whom the Software is furnished to do so, subject to
+;; the following conditions:
+;;
+;; The above copyright notice and this permission notice shall be
+;; included in all copies or substantial portions of the Software.
+;;
+;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+;; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+;; LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+;; OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+;; WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 ;; [SK] the SRFI-7 reference implementation using cond-expand expands
 ;; a form that ends with (begin), although the empty begin isn't defined