patch contains some spelling fixes ( just in comments ) as found by a bot ( http://www.misfix.org, https://github.com/ka7/misspell_fixer ).
Also, any upcoming License changes (e.g. GPL2 to GPL3+) are hereby granted.
texinfo.texi has been source copied from the GNU repo and thus the typos are probably already fixed upstream. Anyway, I agree to fix them here; in particular because there are some discussion in the GNU project to move away from texinfo.
Typo fixes are not copyrightable, thus we don't need a DCO.