gdb/ChangeLog: Update year range in copyright notice of all files.
symbol size. * ppc64-tdep.c (ppc64_elf_make_msymbol_special): New function. * ppc64-tdep.h (ppc64_elf_make_msymbol_special): Declare. * ppc-linux-tdep.c (ppc_linux_init_abi): Set up to use the above. * ppcfbsd-tdep.c (ppcfbsd_init_abi): Likewise.