Documentation Command in `tox.ini` does not work if `envtmpdir` absolute path contains spaces

[hf-kklein]

ahbicht/tox.ini

Line 95 in 0c62447

sphinx-build -W -b html -d {envtmpdir}/doctrees docs {envtmpdir}/html

on windows at least

[hf-kklein]

always blame the messenger ;)