["test/end-to-end/just-mr", "fetch"]: fix destination directory

By default, just-mr fetches to the first existing distribution
directory; by default, the first distribution directory to consider
is ~/.distfiles. If an explicit destination is desired, it should
be specified with the -o option. Fix the invocation of just-mr in
the end-to-end test to use the specified destination; this also makes
local execution of te test hermetic (as was originally intended), even
if the user has a directory ~/.distfiles.

0 files changed, 0 insertions, 0 deletions