Don't quote {posargs} in tox.ini

Quotes around {posargs} cause the entire string to be combined into one
arg that gets passed to stestr. This prevents passing multiple args
(e.g. '--concurrency=16 some-regex')

Change-Id: I62860fe0f6cfea902c60a251408577bbe0ea894f

1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 979e668..3eb2c0d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -38,7 +38,7 @@ basepython = python3
 setenv =
     PYTHON=coverage run --source oslo_concurrency --parallel-mode
 commands =
-    stestr run '{posargs}'
+    stestr run {posargs}
     coverage combine
     coverage html -d cover
     coverage xml -o cover/coverage.xml