Resolves acquia#11: Changing Git unit tests to use --dry-run flag for commit tests.

Author: grasmash

template/tests/phpunit/GitTest.php

@@ -66,7 +66,7 @@ public function testGitPreCommitHook() {
     // Commits must be executed inside of new project directory.
     chdir($this->projectDirectory);
     $prefix = $this->config['project']['prefix'];
-    $command = "git commit --amend -m '$prefix-123: This is a good commit.' 2>&1";
+    $command = "git commit --dry-run --amend -m '$prefix-123: This is a good commit.' 2>&1";
     $output = shell_exec($command);
     $this->assertNotContains('PHP Code Sniffer was not found', $output);
     $this->assertContains('Sniffing staged files via PHP Code Sniffer.', $output);