Do not use date ranges in copyright notices.

See http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices

* HACKING, Makefile.am, NEWS, PACKAGING, README, README-alpha:
* TODO, bootstrap, bootstrap.conf:
* build-aux/update-b4-copyright, cfg.mk, configure.ac:
* data/README, data/bison.m4, data/c++-skel.m4, data/c++.m4:
* data/c-skel.m4, data/c.m4, data/glr.c, data/glr.cc:
* data/java-skel.m4, data/java.m4, data/lalr1.cc:
* data/lalr1.java, data/location.cc:
* data/xslt/bison.xsl:
* data/xslt/xml2dot.xsl, data/xslt/xml2text.xsl:
* data/xslt/xml2xhtml.xsl, data/yacc.c, djgpp/Makefile.maint:
* djgpp/README.in, djgpp/config.bat, djgpp/config.sed:
* djgpp/config.site, djgpp/config_h.sed, djgpp/djunpack.bat:
* djgpp/subpipe.c, djgpp/subpipe.h:
* djgpp/testsuite.sed, doc/bison.texinfo:
* doc/refcard.tex, etc/README, etc/bench.pl.in:
* examples/calc++/Makefile.am, examples/extexi:
* lib/abitset.c, lib/abitset.h:
* lib/bbitset.h, lib/bitset.c, lib/bitset.h:
* lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
* lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
* lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
* lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
* lib/libiberty.h, lib/main.c, lib/timevar.c:
* lib/timevar.def, lib/timevar.h, lib/vbitset.c:
* lib/vbitset.h, lib/yyerror.c, m4/bison-i18n.m4:
* m4/c-working.m4, m4/cxx.m4, m4/subpipe.m4, m4/timevar.m4:
* src/LR0.c:
* src/LR0.h, src/assoc.c:
* src/assoc.h, src/closure.c, src/closure.h, src/complain.c:
* src/complain.h, src/conflicts.c, src/conflicts.h:
* src/derives.c, src/derives.h, src/files.c, src/files.h:
* src/flex-scanner.h, src/getargs.c, src/getargs.h:
* src/gram.c, src/gram.h, src/graphviz.c:
* src/lalr.c, src/lalr.h:
* src/location.c, src/location.h, src/main.c:
* src/nullable.c, src/nullable.h:
* src/output.c, src/output.h, src/parse-gram.y:
* src/print-xml.c, src/print-xml.h, src/print.c, src/print.h:
* src/print_graph.c, src/print_graph.h, src/reader.c:
* src/reader.h, src/reduce.c, src/reduce.h, src/relation.c:
* src/relation.h, src/scan-code.h, src/scan-code.l:
* src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
* src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
* src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
* src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
* tests/actions.at, tests/atlocal.in, tests/c++.at:
* tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
* tests/existing.at, tests/glr-regression.at:
* tests/headers.at, tests/input.at, tests/java.at:
* tests/local.at:
* tests/output.at, tests/push.at, tests/reduce.at:
* tests/regression.at, tests/sets.at, tests/skeletons.at:
* tests/synclines.at, tests/testsuite.at, tests/torture.at:
* data/Makefile.am, data/location.cc, doc/Makefile.am, src/Makefile.am:
* tests/Makefile.am, lib/Makefile.am, examples/Makefile.am:
* etc/Makefile.am, m4/m4.m4, src/muscle_tab.c, src/muscle_tab.h:
Don't use date ranges in copyright notices.

Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
2008, 2009, 2010 Free Software Foundation, Inc.

m4/bison-i18n.m4

@@ -1,5 +1,7 @@
 # bison-i18n.m4 serial 2
-dnl Copyright (C) 2005-2006, 2009-2010 Free Software Foundation, Inc.
+
+dnl Copyright (C) 2005, 2006, 2009, 2010 Free Software Foundation, Inc.
+
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.

m4/c-working.m4

@@ -1,6 +1,6 @@
 # Sanity test a C compiler.
 
-# Copyright (C) 2006, 2009-2010 Free Software Foundation, Inc.
+# Copyright (C) 2006, 2009, 2010 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

m4/cxx.m4

@@ -1,7 +1,7 @@
 # -*- Autoconf -*-
 # Sanity-test a C++ compiler.
 #
-# Copyright (C) 2004, 2006, 2009-2010 Free Software Foundation, Inc.
+# Copyright (C) 2004, 2006, 2009, 2010 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

m4/m4.m4

@@ -1,6 +1,7 @@
 # m4.m4 serial 10
 
-# Copyright (C) 2000, 2006-2010 Free Software Foundation, Inc.
+# Copyright (C) 2000, 2006, 2007, 2008, 2009, 2010 Free Software
+# Foundation, Inc.
 
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright

m4/subpipe.m4

@@ -1,7 +1,7 @@
 # -*- Autoconf -*-
 # Checks required to run `subpipe'.
 #
-# Copyright (C) 2002-2003, 2005, 2009-2010 Free Software Foundation,
+# Copyright (C) 2002, 2003, 2005, 2009, 2010 Free Software Foundation,
 # Inc.
 #
 # This program is free software: you can redistribute it and/or modify

m4/timevar.m4

@@ -1,7 +1,7 @@
 # -*- Autoconf -*-
 # Checks required to run `timevar', a time tracker.
 #
-# Copyright (C) 2002-2003, 2009-2010 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2003, 2009, 2010 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by