Change uname based arch-check to match machine hardware name in sgcheck.

Some hardware platforms will return "unknown" for 'uname -i', so it is more
accurate and common to run 'uname -m' which returns machine hardware name.
This way, some platforms that do not support sgcheck will avoid running tests
for it.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13022 a5019735-40e9-0310-863c-91ae7b9d1cf9
1 file changed