packaging: add docutils as dependency
The previous commit revealed that attempting to run
`python setup.py build_doc` from the packaging virtualenv
failed due to missing docutils package. We didn't notice
this before because py2exe Windows packaging appears to
use a Python from another virtualenv (which does include
docutils) to invoke setup.py. I discovered this as part
of implementing packaging outside of that virtualenv
environment.
Differential Revision: https://phab.mercurial-scm.org/D8470
$ hg init
$ echo a > a
$ hg ci -Ama
adding a
$ hg an a
0: a
$ hg --config ui.strict=False an a
0: a
$ echo "[ui]" >> $HGRCPATH
$ echo "strict=True" >> $HGRCPATH
$ hg an a
hg: unknown command 'an'
(use 'hg help' for a list of commands)
[255]
$ hg annotate a
0: a
should succeed - up is an alias, not an abbreviation
$ hg up
0 files updated, 0 files merged, 0 files removed, 0 files unresolved