Make travis Happy for https://github.com/joomla/joomla-cms/pull/5499

Hi @nikosdion

this should make travis happy here: https://github.com/joomla/joomla-cms/pull/5499

```
FILE: ...s/build/joomla/joomla-cms/libraries/cms/installer/adapter/component.php
--------------------------------------------------------------------------------
FOUND 8 ERROR(S) AFFECTING 8 LINE(S)
--------------------------------------------------------------------------------
 1141 | ERROR | Tabs must be used to indent lines; spaces are not allowed
 1142 | ERROR | Tabs must be used to indent lines; spaces are not allowed
 1143 | ERROR | Tabs must be used to indent lines; spaces are not allowed
 1255 | ERROR | Tabs must be used to indent lines; spaces are not allowed
 1256 | ERROR | Tabs must be used to indent lines; spaces are not allowed
 1257 | ERROR | Tabs must be used to indent lines; spaces are not allowed
 1258 | ERROR | Tabs must be used to indent lines; spaces are not allowed
 1878 | ERROR | Expected 2 spaces after the longest type
--------------------------------------------------------------------------------
```