The output of commands is often trimmed. It happens almost always when command errors.

Example: https://ci.appveyor.com/project/sheerun/bower/build/47

When I run this on my local machine, the output is not trimmed:

```
․․․․․․․․․․․․․․․․․․

  461 passing (27s)
  22 pending

>> =============================================================================
>> Writing coverage object [/Users/sheerun/Source/Bower/bower/test/reports/coverage.json]
>> Writing coverage reports at [/Users/sheerun/Source/Bower/bower/test/reports]
>> =============================================================================

=============================== Coverage summary ===============================
Statements : 86.63% ( 3129/3612 )
Branches : 73.34% ( 1081/1474 )
Functions : 86.54% ( 643/743 )
Lines : 86.71% ( 3124/3603 )
================================================================================

Running "exec:coveralls" (exec) task
>>
>> Bad response: 500 {"message":"Build processing error.","error":true,"url":""}
>> Exited with code: 8.
Warning: Task "exec:coveralls" failed. Use --force to continue.

Aborted due to warnings.
```