Use os.path.join to form the cli command
* If cli_dir path has no trailing "/" the generated command would no
longer be malformed
* Fix tempest.conf.sample: CLI group should not be capitalized
Change-Id: I4d367d4b6cde492ceb224c4b644d4853181a62ce
diff --git a/etc/tempest.conf.sample b/etc/tempest.conf.sample
index db6a7bd..bc191d8 100644
--- a/etc/tempest.conf.sample
+++ b/etc/tempest.conf.sample
@@ -332,8 +332,8 @@
# ssh username for the image file
ssh_user = cirros
-[CLI]
+[cli]
# Enable cli tests
enabled = True
# directory where python client binaries are located
-cli_dir = /usr/local/bin/
+cli_dir = /usr/local/bin