ubik: Don't overflow server's addr array

We're checking to see if we've overflowed the array _after_ we've
looked up an element within it - so on the final iteration, we
always read past the end of the array.

Fix this by swapping the order of the tests in the for statemen

Caught by coverity (#985590)

Reviewed-on: http://gerrit.openafs.org/9326
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 a4ae9a4c3cc1fa5ca2b813174040dce36284a4b9)

Conflicts:
	src/ubik/recovery.c

Change-Id: Ic09177a1e85492e181e51d554ddb25df2ca2dfbd
Reviewed-on: http://gerrit.openafs.org/9373
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Paul Smeddle <paul.smeddle@gmail.com>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>