archimport: fix -t tmpdir switch
archimport: fix -t tmpdir switch

set TMPDIR env correctly if -t <tmpdir> is passed from the command-line.
setting TMPDIR => 1 as an argument to tempdir() has no effect otherwise

Signed-off-by: Eric Wong <8c2951295f8292b0c03727bc4652981172298eae@yhbt.net>
Signed-off-by: Martin Langhoff <54669547a225ff20cba8b75a4adca540eef25858@catalyst.net.nz>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git