afs: Slight restructuring in afs_Analyze

afs: Slight restructuring in afs_Analyze

We test for acode < 0 && acode != VRESTARTING, but then immediately
test for specific values for acode. Move this conditional down, and
remove a level of indentation for the next couple of acode checks.

This commit should introduce no functional change.

Reviewed-on: http://gerrit.openafs.org/8461
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Reviewed-by: Derrick Brashear <shadow@your-file-system.com>
(cherry picked from commit db57dfd3798f09e77b5c49bed304cacc0c448f91)

Change-Id: Idd836a5acba775c82f360ea1082ba50cc32914af
Reviewed-on: http://gerrit.openafs.org/8549
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Hans-Werner Paulsen <hans@MPA-Garching.MPG.DE>
Tested-by: Hans-Werner Paulsen <hans@MPA-Garching.MPG.DE>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>
Tested-by: Stephan Wiesand <stephan.wiesand@desy.de>
Reviewed-by: Ken Dreyer <ktdreyer@ktdreyer.com>
Tested-by: Ken Dreyer <ktdreyer@ktdreyer.com>
Reviewed-by: Paul Smeddle <paul.smeddle@gmail.com>