preparing for binutils 2.10

[Alan Modra]

On 9 Mar 2000, Andreas Jaeger wrote:

> Another problem is that I've got LANG set to german and therefore
> LC_COLLATE is different than expected.  Can we set LC_COLLATE to "C"
> for the tests (what's the best place to do so)?

ld/Makefile.am:check-DEJAGNU sets a number of vars for runtest.  Adding
LC_COLLATE=C there would be reasonable, similarly for other directories as
necessary.