Simplify contrib/gcc_update wrt. Java

I committed this straightforward simplification, and while I was 
at it also adjusted the copyright dates.

Gerald

2017-01-17  Gerald Pfeifer  <[email protected]>

	* gcc_update: Remove entries related to GCJ and libgcj.
	Complete copyright years and adjust my e-mail address.

Index: gcc_update
===================================================================
--- gcc_update	(revision 244516)
+++ gcc_update	(working copy)
@@ -4,9 +4,9 @@
 # repository, with an emphasis on treating generated files correctly, so
 # that autoconf, gperf et al are not required for the ``end'' user.
 #
-# (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010,
-# 2011 Free Software Foundation
-# Originally by Gerald Pfeifer <[email protected]>, August 1998.
+# (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 
+# 2010, 2011, 2012, 2013, 2014, 2015, 2017 Free Software Foundation
+# Originally by Gerald Pfeifer <[email protected]>, August 1998.
 #
 # This script is Free Software, and it can be copied, distributed and
 # modified as defined in the GNU General Public License.  A copy of
@@ -97,7 +97,6 @@
 gcc/config/tilepro/mul-tables.c: gcc/config/tilepro/gen-mul-tables.cc
 # And then, language-specific files
 gcc/cp/cfns.h: gcc/cp/cfns.gperf
-gcc/java/keyword.h: gcc/java/keyword.gperf
 # testsuite
 # Without this, _Pragma3.c can have a false negative.
 gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
@@ -131,13 +130,6 @@
 libquadmath/aclocal.m4: libquadmath/configure.ac libquadmath/acinclude.m4
 libquadmath/Makefile.in: libquadmath/Makefile.am libquadmath/configure.ac libgfortran/aclocal.m4
 libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4
-libjava/aclocal.m4: libjava/configure.ac
-libjava/Makefile.in: libjava/Makefile.am libjava/configure.ac libjava/aclocal.m4
-libjava/configure: libjava/configure.ac libjava/aclocal.m4
-libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4
-libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
-libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
-libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 libcpp/aclocal.m4: libcpp/configure.ac
 libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4
 libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4