Section 6.1.4 in libos.tex, in the description of the 
stat function, there is a new paragraph on FreeBSD with 
an incomplete parenthesis:
..."may be available (but may be only filled out of 
root tries to use them:"
I guess it should read "(but may be only filled out if 
root tries to use them):" (but I may be wrong).

Also, in the walk function, there is a typo : one 
"dirnames" should be "dirpath" instead (when describing 
the effect of a modification of dirnames in a bottom-up 
 walk).

In this same walk function, os.error is used although 
OSError is used everywhere else (to my incomplete 
knowledge). Is there a reason?

I join a patch with these corrections and some small 
LaTeX macro changes in stat_float_times.

Thank you.