TST: make tox block when running in parallel

cpcloud · cpcloud · commit 858da943f099 · 2013-06-28T14:47:33.000-04:00
diff --git a/tox_prll.sh b/tox_prll.sh
@@ -25,3 +25,4 @@ for e in $ENVS; do
     echo "[launching tox for $e]"
     tox -c "$TOX_INI_PAR" -e "$e" &
 done
+wait
