Fix the dot overlaps with the table border in Availability Zones table

Add space between the dot and table border in Availability
Zones table.

Change-Id: Ic4107c446b015eb72a54496a7a7ef6e2b0a53554
Closes-bug:#1309381
(cherry picked from commit 9456d69e02139c5cf891069a997ae03def0d242a)
Merge "Fix the dot overlaps with the table border in Availability Zones table" into stable/icehouse