Switch to use stestr for unit tests directly
This commit switches to use stestr command to run unit tests directly.
Recently, the latest ostestr command uses stestr instead of testr.
However, we should use stestr directly because it's simple and
straight forward. There is no reason to use ostestr for unit tests
anymore.
Modeled after Iff4abef50178bdc83b868eed4a906e22d790762b
Change-Id: Ie50cd57e87bc049c29b86fce67cc1a2061dad690
diff --git a/.gitignore b/.gitignore
index 6d47339..b77e7f3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -59,4 +59,4 @@
releasenotes/build
# Misc
-.stestr/
+.stestr