Add timeout docu to readme

Remove crlf from certain files.
Add gitattributes

Author: icanhazstring

.gitattributes

@@ -0,0 +1 @@
+* text=auto

README.md

@@ -25,6 +25,14 @@ PHP wrapper for systemctl (PHP7.1)
 SystemCtl::setBinary('/bin/systemctl');
 ```
 
+## How to change command timeout
+To change command tmeout simply call the static method `setTimeout`.
+```php
+SystemCtl::setTimeout(10);
+```
+
+> The default timeout is set to `3` seconds
+
 ## "I need sudo to run commands"
 If you need sudo, you should execute the bin executable with sudo.
 The incode support was dropped due to security reason.

src/SystemCtl.php

@@ -111,7 +111,7 @@ public function getService(string $name): Service
 
     /**
      * @param null|string $unitPrefix
-     * @return array|Service[]
+     * @return Service[]
      */
     public function getServices(?string $unitPrefix = null): array
     {
@@ -133,7 +133,7 @@ public function getTimer(string $name): Timer
 
     /**
      * @param null|string $unitPrefix
-     * @return array|Timer[]
+     * @return Timer[]
      */
     public function getTimers(?string $unitPrefix = null): array
     {

tests/SystemCtlTest.php

@@ -152,7 +152,6 @@ public function testGetTimers()
 
     public function testSetBinaryShouldChangeCommand()
     {
-        // Reset sudo to default
         $systemCtl = new SystemCtl();
 
         $processBuilder = $systemCtl->getProcessBuilder();