Fix test

Author: corona10

Lib/test/test_mmap.py

@@ -1165,6 +1165,7 @@ def test_flush_parameters(self):
             m.flush(PAGESIZE)
             m.flush(PAGESIZE, PAGESIZE)
 
+    @unittest.skipUnless(sys.platform == 'linux', 'Linux only')
     @support.requires_linux_version(5, 17, 0)
     def test_set_name(self):
         # Test setting name on anonymous mmap