Doc cleanup for menu_set_active_trail

Cleaning up is OK, but not a very high priority for Drupal 6 at this time. I'd also avoid filing huge cleanup patches for D7 (small ones like this would be OK).

This is not quite right:

+ *   - type: A menu type constant, such as MENU_DEFAULT_LOCAL_TASK, or 0 to
+ *      indicate it's not really in the menu (used for the home page item).

Indentation on the 2nd line should be two additional spaces, not 3.

Oh.

Actually, this same formatting problem exists in D7 too. We need to fix it there before we can accept a patch for D6.

The D7 patch in #5 is fine. thanks.

The D6 patch in #4 is also fine. So after committing to D7, please set to D6 / RTBC, thanks...

Committed to CVS HEAD. Thanks.

Committed, thanks.