I sent the following mail already, but falsely over the coreutils-mailinglist, not the bug-coreutils one, and also got no answers to it. Therefore here it goes again, slightly improved this time:
in the info-file of coreutils - common options, see the citation "The valid METHODs are": -> for better readability, the above sentence should be started with a new paragraph, since it is not related to information, whether the option `-b' corresponds to some Emacs-variable or not... greetings, kalle