doc: tweak dm-parameter doc

Remove trailing blanks, and change one last reviewer comment.

Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
This commit is contained in:
David B. Kinder 2019-01-09 16:19:05 -08:00 committed by Xie, nanlin
parent 381c78a5fa
commit 97f1f86cc0

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@ -275,7 +275,7 @@ Here are descriptions for each of these ``acrn-dm`` command line parameters:
* - :kbd:`--virtio_poll <poll_interval>`
- Enable virtio poll mode with poll interval xxx ns.
usage::
Example::
--virtio_poll 1000000