bug #52 tests fix (seva-ask)

This PR was merged into the master branch.

Discussion
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tests fix

Hello!
I have found that some tests are broken because of typos, so I have fixed them.

Commits
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43a1191 tests fix

Author: lyrixx

src/Gitonomy/Git/Util/StringHelper.php

@@ -47,11 +47,11 @@ public static function substr($string, $start, $length = false)
 
     public static function strpos($haystack, $needle, $offset = 0)
     {
-        return function_exists('mb_strpos') ? mb_strpos($haystack, $needle, $offset, self::$encoding) : strpos($haystace, $needle, $offset);
+        return function_exists('mb_strpos') ? mb_strpos($haystack, $needle, $offset, self::$encoding) : strpos($haystack, $needle, $offset);
     }
 
     public static function strrpos($haystack, $needle, $offset = 0)
     {
-        return function_exists('mb_strrpos') ? mb_strrpos($haystack, $needle, $offset, self::$encoding) : strrpos($haystace, $needle, $offset);
+        return function_exists('mb_strrpos') ? mb_strrpos($haystack, $needle, $offset, self::$encoding) : strrpos($haystack, $needle, $offset);
     }
 }