standardize indentation in tox.ini

Try to tidy up the formatting of the configuration file.

Change-Id: Ic492ee63f228b486da492088cd7fcb71d784b2e3
Signed-off-by: Doug Hellmann <doug@doughellmann.com>

tox.ini

@@ -1,6 +1,7 @@
 [tox]
 minversion = 2.0
-envlist = cover,
+envlist =
+  cover,
   docs,
   pep8,
   py27,
@@ -11,22 +12,28 @@ envlist = cover,
 
 [testenv]
 basepython = python3
-setenv = VIRTUAL_ENV={envdir}
+setenv =
+  VIRTUAL_ENV={envdir}
   BRANCH_NAME=master
   CLIENT_NAME=taskflow
 install_command = {toxinidir}/tools/tox_install.sh {env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
 # We need to install a bit more than just `test' because those drivers have
 # custom tests that we always run
-deps = .[test,workers,zookeeper,database,redis,eventlet]
-commands = python setup.py testr --slowest --testr-args='{posargs}'
+deps =
+  .[test,workers,zookeeper,database,redis,eventlet]
+commands =
+  python setup.py testr --slowest --testr-args='{posargs}'
 
 [testenv:docs]
-deps = -r{toxinidir}/doc/requirements.txt
-commands = sphinx-build -E -W -b html doc/source doc/build/html
+deps =
+  -r{toxinidir}/doc/requirements.txt
+commands =
+  sphinx-build -E -W -b html doc/source doc/build/html
   doc8 doc/source
 
 [testenv:update-states]
-deps = {[testenv]deps}
+deps =
+  {[testenv]deps}
   pydot2
 commands = {toxinidir}/tools/update_states.sh
 
@@ -36,12 +43,14 @@ commands =
   doc8 doc/source
 
 [testenv:pylint]
-deps = {[testenv]deps}
+deps =
+  {[testenv]deps}
   pylint==0.26.0
 commands = pylint --rcfile=pylintrc taskflow
 
 [testenv:cover]
-deps = {[testenv]deps}
+deps =
+  {[testenv]deps}
   coverage>=3.6
 commands = python setup.py testr --coverage --testr-args='{posargs}'
 
@@ -54,7 +63,8 @@ exclude = .venv,.tox,dist,doc,*egg,.git,build,tools
 ignore = E721
 
 [hacking]
-import_exceptions = six.moves
+import_exceptions =
+  six.moves
   taskflow.test.mock
   unittest.mock