[PATCH 1/4] abstract: address lnovich comment

["Michael S. Tsirkin" <mst@redhat.com>]

lnovich@redhat.com suggested rewording abstract,
making the following points:

1. they in "they are not all that different" is ambigious. One
   might think it means
   virtual environments (which one might take to mean all
   virtual devices) are like physical devices.
2. from what point of view is virtio like a physical device?
   it's very different from host POV
3. "the guest" appears out of nowhere. It's the guest that runs
   in the vm of course.
4. "not all that different" means similar so there's not need to
   be verbose
5. This in "This allows" is ambigious: what allows guest to use
   standard drivers?
   It's the device being like a physical one - not how this
   document is written.

Address this comment without making strong claims.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 abstract.tex | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/abstract.tex b/abstract.tex
index b42a0b6..1569882 100644
--- a/abstract.tex
+++ b/abstract.tex
@@ -1,8 +1,9 @@
-This document describes the specifications of the “virtio” family of
-devices. These devices are found in virtual environments, yet by
-design they are not all that different from physical devices, and this
-document treats them as such. This allows the guest to use standard
-drivers and discovery mechanisms.
+This document describes the specifications of the “virtio” family
+of devices. These devices are found in virtual environments, yet
+by design from the point of view of the virtual machine guest
+virtio devices look similar to physical devices - and this
+document treats them as such.  This similarity allows the guest
+to use standard drivers and discovery mechanisms.
 
 The purpose of virtio and this specification is that virtual
 environments and guests should have a straightforward, efficient,
-- 
MST