fix line-split in GitHelper.php
fix line-split in GitHelper.php

PHP_EO results to `\r\n` on Windows, but Git uses \n (depending on the line-ending configuration)
sstok/gush,gushphp/gush,cordoval/gush,webflo/gush,pierredup/gush,gushphp/gush,gushphp/gush,cordoval/gush,pierredup/gush,sstok/gush,cordoval/gush,webflo/gush,gushphp/gush,sstok/gush,webflo/gush,pierredup/gush