Fix typo in stream_get_contents() call

tests/GridFS/FunctionalTestCase.php

@@ -38,7 +38,7 @@ abstract class FunctionalTestCase extends BaseFunctionalTestCase
     {
         $this->assertInternalType('resource', $stream);
         $this->assertSame('stream', get_resource_type($stream));
-        $this->assertEquals($expectedContents, stream_get_contents($stream, -1,.0));
+        $this->assertEquals($expectedContents, stream_get_contents($stream, -1, 0));
     }
 
     /**