Test suite patch, take 2

[Benjamin Kosnik]

>(hopefully) identical to before, except now I've done the formatting 
>myself and written a tiny spot of documentation. Hopefully these are 
>somewhat more readable and somewhat closer to the correct formatting..

both of your patches look pretty good to me, thanks.

Do you have a copyright assignment on file? If not, let's start that
process ASAP. See:

http://gcc.gnu.org/onlinedocs/libstdc++/17_intro/contribute.html

best,
-benjamin