profile::annex_web: add back default options on docroot
profile::annex_web: add back default options on docroot

puppetlabs-apache adds an entry for docroot only if no directories are
specified; if at least one is, docroot must be added by hand and options
should be specified too. Sigh.

SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-profile,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-profile,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-profile,SoftwareHeritage/puppet-swh-profile,SoftwareHeritage/puppet-swh-profile