Don't wrap usage lines in the middle of hyphenated option names

[MaxxxDong]

Summary

HelpFormatter.write_usage wraps usage arguments with textwrap.TextWrapper, which defaults to break_on_hyphens=True. Hyphenated option names such as --max-retry-count were therefore split across lines:

Usage: program --enable-verbose-logging --output-file-path --max-
               retry-count --disable-cache-mode --config-file-
               location ...

write_usage now passes break_on_hyphens=False so wrapping only happens at spaces. Help-text wrapping is unchanged.

Fixes #3362.

Test plan

• New regression test using the example from HelpFormatter.write_usage breaks options at a hyphen #3362 (width=65) asserts every option name is intact and no usage line ends with a hyphen.
• Existing tests/test_formatting.py (38 tests) pass.
• Full suite minus environment-specific pager tests: 1931 passed.
• ruff check / ruff format on the touched files.