st2 key list --last 1 does not print truncation note

SUMMARY

Found by the BATS tests.

st2 key list -n 1 does truncate the result list, but it does not print the truncation note.

Output:

+-----------+------------+--------+-----------+--------------+------+------------------+
| name      | value      | secret | encrypted | scope        | user | expire_timestamp |
+-----------+------------+--------+-----------+--------------+------+------------------+
| name=asdf | value=fdsa | False  | False     | st2kv.system |      |                  |
+-----------+------------+--------+-----------+--------------+------+------------------+

ISSUE TYPE

Pick one below and delete the rest:

• Bug Report

STACKSTORM VERSION

Paste the output of st2 --version:

st2 3.1dev (b88f9a3), on Python 2.7.12

OS / ENVIRONMENT / INSTALL METHOD

Ubuntu 16.04

STEPS TO REPRODUCE

Ensure that two or more keys exist, then run st2 key list -n 1.

EXPECTED RESULTS

The truncated list and the truncation note should be printed.

ACTUAL RESULTS

The truncation note is not printed.

Start with the st2 key list -n 1 CLI entry point and the BATS tests that exposed the issue. Reproduce the command with at least two keys, then trace how the truncated result and truncation note are handled. Done means the list and its truncation note are both printed, with the relevant BATS test passing.