test suite: t-defdistro: Set distro='' too

This means that t-defdistro works without t-chain-test and
reinvocation.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/tests/lib b/tests/lib
index f4f9fc599a6ca45aa9542664f8cf1588a963c607..e7ab334cc3daae7dc644ba5a8b9d8b1c94b768a2 100644 (file)
--- a/tests/lib
+++ b/tests/lib
@@ -783,6 +783,7 @@ t-822-field () {
 
 t-defdistro () {
        export DGIT_TEST_DISTRO=''
+       distro=''
        t-git-config dgit-suite.unstable.distro test-dummy
 }