Fixed comment typo

Change-Id: I68dd463c7365b536396c6715efa6042b3f102670
Fix init_host checking moved instances

Commit 6fc00d3465185 (https://review.openstack.org/#/c/18486/)
introduced a couple of problems.

1) It introduced a method to try to deduce instance integer id from
   a name the driver reports and using instance_name_template.  This
   fails badly when you're using something like 'instance-%(uuid)s' for
   instance_name_template.  It's only used when the driver does not
   support the 'list_instance_uuids' method.. but XenAPI happens to
   not implement this method.

2) There's a call to _get_instance_volume_block_device_info() that is
   passing an instance_uuid when the method wants an instance.

Fixes bug 1097987 (#1 above) by doing a brute force match against
   all instances' names.
Fixes bug 1097978 (#2 above)

Change-Id: I2da7658dd906fa06f0e867a2b22bf14e7f34cb12
Try out a new nova.conf.sample format

The current format strikes me as fairly bizarre:

  - Having the help message after the option it's documenting seems
    backwards to me. Compare to the glance or swift samples.

  - Printing the type as e.g. "(StrOpt)" isn't very user friendly

  - We're creating a global pound symbol shortage

Switch to a new format that looks much more like a normal config file.

Change-Id: Ifba0a181667f3b81cad400f1cdd3812e388a9d64
fix new N402 errors

fix the N402 errors that have slipped in in the last 48 hrs since
starting this patch series.

fix an N401 error that our scanner current can't find because it
only looks for doc strings on classes and defs.

this is the xeno's paradox of patch series, but we're getting close.

Change-Id: I4a763bb4c812335d853eae05c72464f18ab93297
make runtests -p act more like tox

now that all the N402 fixes are in, start enforcing it

Change-Id: I9d495849bf698e5af142d0ccafe551ac0e8a600c
Merge "Try out a new nova.conf.sample format"
Merge "Fix init_host checking moved instances"
Merge "Fixed comment typo"
Merge "fix new N402 errors"
Merge "make runtests -p act more like tox"