Much improved testsuite results on irix6.5

[Benjamin Kosnik]

>Running target unix
>FAIL: 22_locale/ctype/cons/char/1.cc execution test
>FAIL: 22_locale/time_put/put/wchar_t/10.cc execution test
>FAIL: 22_locale/time_put/put/wchar_t/9.cc execution test
>FAIL: 27_io/basic_filebuf/showmanyc/char/9533-2.cc execution test
>FAIL: 27_io/basic_istream/readsome/char/6746-2.cc execution test

I saw these. Also the s390/s390x results that look ok. Why are alpha and
ia64 still failing!!! Ugh. Other than that, everything looks pretty
good.

-benjamin