us up to version 2.17.50.20070703, at the last GPLv2 commit.
Amongst others, this added upstream support for some FreeBSD-specific
things that we previously had to manually hack in, such as the OSABI
label support, and so on.
There are also quite a number of new files, some for cpu's (e.g. SPU)
that we may or may not be interested in, but those can be cleaned up
later on, if needed.
The change made to bfd/elf.c in upstream revision 1.217.4.3 (which was a
revert of an earlier change), caused objcopy on powerpc to fail to copy
debug info from kernel modules. This had to be fixed by applying the
diff from upstream revision 1.243 on top of it.
Binutils has a "contrib" subdirectory - thus flattening cannot happen
without renaming the upper level contrib directory in a first pass.
Also, don't record this move and remove any keyword expansion.
