[PATCH] gdb: make gdbarch_make_corefile_notes return a unique ptr

[Tom Tromey]

>>>>> "Simon" == Simon Marchi via Gdb-patches <gdb-patches@sourceware.org> writes:

Simon> This patch starts by making the gdbarch_make_corefile_notes function
Simon> return a gdb::unique_xmalloc_ptr<char> and takes care of the fallouts,
Simon> mostly in linux-tdep.c and fbsd-tdep.c.

Seems like a good idea to me, and the implementation looked good as
well.  Thank you.

Tom