Adding process output to the exception description

Author: fonsecas72

src/Gitonomy/Git/Exception/ProcessException.php

@@ -13,7 +13,9 @@ public function __construct(Process $process)
         parent::__construct("Error while running git command:\n".
             $process->getCommandLine()."\n".
             "\n".
-            $process->getErrorOutput()
+            $process->getErrorOutput()."\n".
+            "\n".
+            $process->getOutput()
         );
 
         $this->process = $process;