div processor with `style` (no value) raises a TypeError

[Jun Omae]

{{{#!div style
text
}}}

As the result, the following is displayed:

Error: Processor div failed

sequence item 0: expected str instance, bool found

Traceback

04:26:04 AM Trac[formatter] ERROR: Processor div failed for <Resource 'ticket'>:
Traceback (most recent call last):
  File "/src/tracdev/git/trac/wiki/formatter.py", line 1220, in _exec_processor
    return processor.process(text)
  File "/src/tracdev/git/trac/wiki/formatter.py", line 380, in process
    text = self.processor(text)
  File "/src/tracdev/git/trac/wiki/formatter.py", line 262, in _div_processor
    return self._elt_processor('div', format_to_html, text)
  File "/src/tracdev/git/trac/wiki/formatter.py", line 249, in _elt_processor
    elt = getattr(tag, eltname)(**(self.args or {}))
  File "/src/tracdev/git/trac/util/html.py", line 411, in __call__
    d = self._dict_from_kwargs(kwargs)
  File "/src/tracdev/git/trac/util/html.py", line 404, in _dict_from_kwargs
    v = self._attr_value(k, v)
  File "/src/tracdev/git/trac/util/html.py", line 457, in _attr_value
    return html_attribute(k, v)
  File "/src/tracdev/git/trac/util/html.py", line 252, in html_attribute
    val = styles(val) or None
  File "/src/tracdev/git/trac/util/html.py", line 329, in styles
    return '; '.join(styles)
TypeError: sequence item 0: expected str instance, bool found

[Jun Omae]

Fixed in [17953] and merged in [17954].