Patch for references to "19yy" in COPYING

[Tom Tromey]

>>>>> "Joseph" == Joseph S Myers <jsm28@cam.ac.uk> writes:

Joseph> The GPL used to have a Y2K problem in its example copyright
Joseph> notices (giving a year 19yy as an example).  The current
Joseph> version on ftp.gnu.org fixes this; this patch updates the
Joseph> copies in the GCC distribution (except those in texinfo, since
Joseph> the proposed removal of texinfo is awaiting review).  OK to
Joseph> commit?

I can't speak for other directories but it is fine for libjava.
Thanks.

Tom