Better assertion on GlobTest

@DASPRiD suggested this... JUST in case that path exists. :rollseyes:

To be fair, his point abou the assertion matching the test name at least
makes some sense; so here it is.

test/GlobTest.php

@@ -30,6 +30,6 @@ public function testFallback()
     public function testNonMatchingGlobReturnsArray()
     {
         $result = Glob::glob('/some/path/{,*.}{this,orthis}.php', Glob::GLOB_BRACE);
-        $this->assertEquals(array(), $result);
+        $this->assertInternalType('array', $result);
     }
 }