code cleanup so tox passes

3 jobs for master in 56 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed #3439
pages

00:00:53

passed #3438
run

00:00:36

failed #3437
test

00:00:56

 
Name Stage Failure
failed
test Test There is an unknown failure, please try again
py36 inst: /builds/open-source/j2static/.tox/dist/j2static-0.1.zip
py36 installed: attrs==17.4.0,bleach==2.1.2,check-manifest==0.36,docutils==0.14,flake8==3.5.0,html5lib==1.0.1,j2static==0.1,Jinja2==2.10,MarkupSafe==1.0,mccabe==0.6.1,pluggy==0.6.0,py==1.5.2,pycodestyle==2.3.1,pyflakes==1.6.0,Pygments==2.2.0,pytest==3.4.1,readme-renderer==17.2,six==1.11.0,webencodings==0.5.1
py36 runtests: PYTHONHASHSEED='336291188'
py36 runtests: commands[0] | check-manifest --ignore tox.ini,tests*
could not run ['git', 'ls-files', '-z']: [Errno 2] No such file or directory: 'git': 'git'
ERROR: InvocationError: '/builds/open-source/j2static/.tox/py36/bin/check-manifest --ignore tox.ini,tests*'
___________________________________ summary ____________________________________
ERROR: py36: commands failed
ERROR: Job failed: exit code 1
failed
pages Test There is an unknown failure, please try again
  Running setup.py bdist_wheel for MarkupSafe: started
Running setup.py bdist_wheel for MarkupSafe: finished with status 'done'
Stored in directory: /root/.cache/pip/wheels/88/a7/30/e39a54a87bcbe25308fa3ca64e8ddc75d9b3e5afa21ee32d57
Successfully built MarkupSafe
Installing collected packages: six, sphinxcontrib-websupport, imagesize, snowballstemmer, urllib3, chardet, certifi, idna, requests, Pygments, docutils, alabaster, pytz, babel, pyparsing, packaging, MarkupSafe, Jinja2, sphinx, sphinx-rtd-theme
Successfully installed Jinja2-2.10 MarkupSafe-1.0 Pygments-2.2.0 alabaster-0.7.10 babel-2.5.3 certifi-2018.1.18 chardet-3.0.4 docutils-0.14 idna-2.6 imagesize-1.0.0 packaging-16.8 pyparsing-2.2.0 pytz-2018.3 requests-2.18.4 six-1.11.0 snowballstemmer-1.2.1 sphinx-1.7.0 sphinx-rtd-theme-0.2.4 sphinxcontrib-websupport-1.0.1 urllib3-1.22
$ cd doc ; make html
/bin/sh: cd: line 54: can't cd to doc
ERROR: Job failed: exit code 2