Fix comment.

Author: markshannon

Lib/test/test_compile.py

@@ -557,7 +557,7 @@ def test_yet_more_evil_still_undecodable(self):
  @support.cpython_only
  @unittest.skipIf(support.is_wasi, "exhausts limited stack on WASI")
  def test_compiler_recursion_limit(self):
- # Expected limit is C_RECURSION_LIMIT
+ # Expected limit is C_RECURSION_LIMIT * 2
  # Duplicating the limit here is a little ugly.
  # Perhaps it should be exposed somewhere...
  fail_depth = C_RECURSION_LIMIT * 2 + 1