bug#11152: 24.0.94; c-doc-comment-style stops working as a style variable

[Chong Yidong]

Hi Alan,

Could you take a look at Bug#11152
(http://debbugs.gnu.org/cgi/bugreport.cgi?bug=11152)?  Thanks.

> It seems c-doc-comment-style has stopped working when set in a style
> definition. See the discussion thread:
>
>   http://thread.gmane.org/gmane.emacs.cc-mode.general/5795
>
> The bug does not occur in the cc-mode included in emacs 23.