Influx CLI return code is always zero

[rossmcdonald]

InfluxDB version:

InfluxDB v0.10.0.n1453968035 (git: master d771eb72f708c523bb2bec35a97f6bb83ae4ef1d, built 2016-01-28T08:01:46.209415)

Return codes are always zero, regardless of success of command:

vagrant@influx1:~$ influx -execute 'show tag keys' -database 'sample_database'
ERR: write message type: use of closed network connection
vagrant@influx1:~$ echo $?
0
vagrant@influx1:~$ influx -execute 'show tag keys' -database 'banana'
ERR: database not found: banana
vagrant@influx1:~$ echo $?
0
vagrant@influx1:~$ influx -execute 'kazoo' -database 'banana'
ERR: error parsing query: found kazoo, expected SELECT, DELETE, SHOW, CREATE, DROP, GRANT, REVOKE, ALTER, SET at line 1, char 1
vagrant@influx1:~$ echo $?
0

Even when executing incorrect commands, or attempting to access non-existent databases.