Fixed some Scrutinizer hints

Author: sebastianfeldmann

src/Backup/Cli.php

@@ -51,5 +51,5 @@ protected function execute(Target $target)
      * @param  \phpbu\App\Backup\Target $target
      * @return \phpbu\App\Cli\Executable
      */
-    public abstract function getExecutable(Target $target);
+    abstract public function getExecutable(Target $target);
 }

src/Backup/Compressor/Directory.php

@@ -20,6 +20,13 @@
  */
 class Directory extends Cli
 {
+    /**
+     * Path to cli binary.
+     *
+     * @var string
+     */
+    private $pathToCommand;
+
     /**
      * Path to dir to compress.
      *

src/Backup/Compressor/File.php

@@ -20,6 +20,13 @@
  */
 class File extends Cli
 {
+    /**
+     * Path to cli binary.
+     *
+     * @var string
+     */
+    private $pathToCommand;
+
     /**
      * File to dir to compress.
      *

src/Backup/Source/Tar.php

@@ -120,7 +120,7 @@ public function getExecutable(Target $target)
         if (null == $this->executable) {
             // check if tar supports requested compression
             if ($target->shouldBeCompressed()) {
-                if(!Executable\Tar::isCompressorValid($target->getCompressor()->getCommand())) {
+                if (!Executable\Tar::isCompressorValid($target->getCompressor()->getCommand())) {
                     $this->pathToArchive = $target->getPathnamePlain();
                 } else {
                     // compression could be handled by the tar command

src/Cli/Executable/Abstraction.php

@@ -82,7 +82,7 @@ public function getProcess()
      *
      * @return \phpbu\App\Cli\Process
      */
-    protected abstract function createProcess();
+    abstract protected function createProcess();
 
     /**
      * Show the stdError output.