The attached patch adds the following option aliases: --root for -r, -D for
--define (like in rpmbuild), --target for --arch (like in rpmbuild).  It also
adds --verbose and --quiet and -h to the man page, and fixes a couple of other
minor man page issues.

Note that the help string for --trace seemed to be incorrect (a copy-pasto from
--quiet), this patch adds placeholders for real documentation for it both in the
help output and the man page; I don't know what it does so I couldn't document it :)