Build broken for contrib/remote-helpers...

I tried running make in contrib/remote-helpers and it died with:

    :: make
    make -e -C ../../t test
    rm -f -r test-results
    duplicate test numbers: /Users/jszakmeister/sources/git
    make[1]: *** [test-lint-duplicates] Error 1
    make: *** [test] Error 2

The path shown is not quite correct.  I have the sources extracted to
/Users/jszakmeister/sources/git-1.8.1.1.  It appears that the Makefile
in contrib/remote-helpers is exporting T, which is causing the
duplicate test detection to fail.

Thought you'd like to know!

-John