I grepped the gdb directory for gplv2 notices to produce the attached patch 
which moves them all to gplv3.  Mostly these are .y files, which I guess were 
missed the first time round.

We really should put a COPYING3 file in the gdb source directory, as the only 
COPYING file there is a v2 one, and one might presume that it is the one that 
applies to this part of the source tree.  (alternatively remove the COPYING 
file, so the toplevel COPYING3 file is more obvious).

ok?

nathan
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Nathan Sidwell    ::   http://www.codesourcery.com   ::         CodeSourcery