Log Message:
binutils: Handle broken 2.34 release without docs.

The binutils project released the binutils-2.34 tarball without pre-generated
documentation included due to a bug in their Makefiles.  This was fixed in the
source code 2 months ago, but they still have not issued a new tarball since
then, either via a new release or a snapshot.

Building the documentation ourselves is untenable, as it would require pulling
in perl and gtexinfo which would create major circular dependency headaches.

So we're left with no option but to remove the documentation completely until
there is a new release.  Note that until now we've actually been shipping
empty files, as we were ignoring perl errors that were trying to create the
docs.

While here tidy up a few things.  Bump PKGREVISION.