sql: order show regions from database by primary region

[awoods187]

It'd be nice if ordered the results in SHOW REGIONS FROM DATABASE by primary region to make it easier to read:

root@127.0.0.1:26257/movr> SHOW REGIONS FROM DATABASE movr;
  database |    region    | primary |  zones
-----------+--------------+---------+----------
  movr     | europe-west1 |  false  | {b,c,d}
  movr     | us-east1     |  true   | {b,c,d}
  movr     | us-west1     |  false  | {a,b,c}
(3 rows)

Time: 14ms total (execution 13ms / network 0ms)