gh-133558: Skip test_pdb tests on FreeBSD (#133566)

'\x08' is not interpreted as backspace on FreeBSD.

Author: vstinner

Lib/test/test_pdb.py

@@ -4848,6 +4848,8 @@ def f():
 
         self.assertIn(b'I love Python', output)
 
+    @unittest.skipIf(sys.platform.startswith('freebsd'),
+                     '\\x08 is not interpreted as backspace on FreeBSD')
     def test_multiline_auto_indent(self):
         script = textwrap.dedent("""
             import pdb; pdb.Pdb().set_trace()
@@ -4886,6 +4888,8 @@ def test_multiline_completion(self):
 
         self.assertIn(b'42', output)
 
+    @unittest.skipIf(sys.platform.startswith('freebsd'),
+                     '\\x08 is not interpreted as backspace on FreeBSD')
     def test_multiline_indent_completion(self):
         script = textwrap.dedent("""
             import pdb; pdb.Pdb().set_trace()