Add LEGAL, legal notice information.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_6@1598 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

COPYING

@@ -39,11 +39,10 @@ You can redistribute it and/or modify it under either the terms of the GPL
 
   4. You may modify and include the part of the software into any other
      software (possibly commercial).  But some files in the distribution
-     are not written by the author, so that they are not under this terms.
+     are not written by the author, so that they are not under these terms.
 
-     They are gc.c(partly), utils.c(partly), regex.[ch], st.[ch] and some
-     files under the ./missing directory.  See each file for the copying
-     condition.
+     For the list of those files and their copying conditions, see the
+     file LEGAL.
 
   5. The scripts and library files supplied as input to or produced as 
      output from the software do not automatically fall under the

COPYING.jp

@@ -37,10 +37,8 @@ Public License)$B$^$?$O0J2<$K<($9>r7o$GK\%W%m%0%i%`$r:FG[I[$G(B
      $B$@$7!$K\%W%m%0%i%`$K4^$^$l$kB>$N:n<T$K$h$k%3!<%I$O!$$=(B
      $B$l$>$l$N:n<T$N0U8~$K$h$k@)8B$,2C$($i$l$k>l9g$,$"$j$^$9!%(B
 
-     $B6qBNE*$K$O(Bgc.c($B0lIt(B)$B!$(Butil.c($B0lIt(B)$B!$(Bst.[ch]$B!$(Bregex.[ch] 
-     $B$*$h$S(B ./missing$B%G%#%l%/%H%j2<$N%U%!%$%k72$,3:Ev$7$^$9!%(B
-     $B$=$l$>$l$NG[I[>r7o$J$I$KIU$$$F$O3F%U%!%$%k$r;2>H$7$F$/(B
-     $B$@$5$$!%(B
+     $B$=$l$i%U%!%$%k$N0lMw$H$=$l$>$l$NG[I[>r7o$J$I$KIU$$$F$O(B
+     LEGAL$B%U%!%$%k$r;2>H$7$F$/$@$5$$!%(B
 
   5. $BK\%W%m%0%i%`$X$NF~NO$H$J$k%9%/%j%W%H$*$h$S!$K\%W%m%0%i(B
      $B%`$+$i$N=PNO$N8"Mx$OK\%W%m%0%i%`$N:n<T$G$O$J$/!$$=$l$>(B

LEGAL

@@ -63,7 +63,6 @@ missing/strftime.c:
 missing/strncasecmp.c:
 missing/strstr.c:
 missing/strtol.c:
-ext/sha1/sha1.[ch]:
 
   These files are all under public domain.