some tweaks for contrib/test_summary

[Alexandre Oliva]

On Jun  3, 2000, Zack Weinberg <zack@wolery.cumb.org> wrote:

> It's a less common idiom, but it worked in SunOS 4 /bin/sh which is as
> close to V7 /bin/sh as you can get these days.

Ok, fine with me.  It's not like this script was a critical piece of
GCC, anyway :-)

-- 
Alexandre Oliva    Enjoy Guaraná, see http://www.ic.unicamp.br/~oliva/
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