tests/test-race

run-tests: install data files correctly

In 68964567e406 we began installing some data files in PREFIX/share.
When preparing to run the tests, run-tests.py uses --home="" in order
to work around home being set in a ~/.pydistutils.cfg file. This
somehow overwrites the --prefix option.

The result was that the share/ directory was installed in the top of
the Mercurial source tree.

#!/bin/sh

mkdir t
cd t
hg init
echo a > a
hg add a
hg commit -m test

# do we ever miss a sub-second change?
for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20; do
    hg co -qC 0
    echo b > a
    hg st
done