The doc strings and pertinent CC Mode manual page failed to mention that these
variables could also be regular expressions. Amend them.
* lisp/progmodes/cc-vars.el (c-noise-macro-names)
(c-noise-macro-with-parens-names): Amend the doc strings.
* doc/misc/cc-mode.texi (Noise Macros): Amend the descriptions of the two
variables.