Snapctl error message on Task should truncate

[lynxbat]

build/bin/snapctl task list                                                                                                              ✭
ID                   NAME                        STATE       HIT     MISS    FAIL    CREATED         LAST FAILURE
0c9ad69d-f8a2-409c-b162-de6f3e3bd4d5     Task-0c9ad69d-f8a2-409c-b162-de6f3e3bd4d5   Disabled    10      0   10      2:16PM 6-30-2016    Publish call error: Post http://127.0.0.1:8086/write?consistency=&db=db_test&precision=s&rp=default: dial tcp 127.0.0.1:8086: getsockopt: connection refused

The FAIL message causes line wrapping and is either truncating really long or not truncated.

It would be better to have it truncate to keep the table consistent and have the user use a specific task info to see details like fail messages.