Fix candidate to CentOS 5.1 problem:
   bfd.texinfo:325: unknown command `colophon'
   bfd.texinfo:336: unknown command `cygnus'
http://www.netbsd.org/~ryoon/pbulk/CentOS-amd64-5.10/20131104.2103/avr-binutils-2.23.2/build.log
(This will be included in later release, I believe.)