Fix test for /bin/ls file mimetype guessing, using application/x-pie-executable

Author: thePanz

test/unit/validator/sfValidatorFileTest.php

@@ -105,7 +105,7 @@ public function getMimeTypesFromCategory($category)
 $v = new testValidatorFile();
 $t->is($v->guessFromFileBinary($tmpDir.'/test.txt'), 'text/plain', '->guessFromFileBinary() guesses the type of a given file');
 $t->is($v->guessFromFileBinary($tmpDir.'/foo.txt'), null, '->guessFromFileBinary() returns null if the file type is not guessable');
-$t->is($v->guessFromFileBinary('/bin/ls'), (PHP_OS != 'Darwin') ? 'application/x-executable' : 'application/octet-stream', '->guessFromFileBinary() returns correct type if file is guessable');
+$t->is($v->guessFromFileBinary('/bin/ls'), (PHP_OS != 'Darwin') ? 'application/x-pie-executable' : 'application/octet-stream', '->guessFromFileBinary() returns correct type if file is guessable');
 $t->is($v->guessFromFileBinary('-test'), null, '->guessFromFileBinary() returns null if file path has leading dash');
 
 // ->getMimeType()