autotest/autotest — pull request #510 by clebergnu (2012-08-13 03:37:14+00:00)
Title: virt: fix documentation about caching types and add other options

The current version of the inline documentation about caching
swapped names and definitions of writethrough and writeback. Also
add other (somewhat) recent cache options available on latest
qemu.

Signed-off-by: Cleber Rosa