[Emacs-diffs] emacs-25 805204f: Mention what a missing :group does

[Lars Ingebrigtsen]

branch: emacs-25
commit 805204f3efdf3e9cb3ccd2783b7ba44f8c1fdb5a
Author: Lars Ingebrigtsen <address@hidden>
Commit: Lars Ingebrigtsen <address@hidden>

    Mention what a missing :group does
    
    * doc/lispref/customize.texi (Common Keywords): Document that
    a missing :group reuses the group from the preceding item (bug#21601).
---
 doc/lispref/customize.texi |   10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/doc/lispref/customize.texi b/doc/lispref/customize.texi
index 14e6eb3..de130d5 100644
--- a/doc/lispref/customize.texi
+++ b/doc/lispref/customize.texi
@@ -66,9 +66,13 @@ cause confusion.}
 
 @kindex address@hidden, customization keyword}
 @item :group @var{group}
-Put this customization item in group @var{group}.  When you use
address@hidden:group} in a @code{defgroup}, it makes the new group a subgroup of
address@hidden
+Put this customization item in group @var{group}.  If this keyword is
+missing from a customization item, it'll be placed in the same group
+as the previous customization item that had a @code{:group} spec (in
+the same file).
+
+When you use @code{:group} in a @code{defgroup}, it makes the new
+group a subgroup of @var{group}.
 
 If you use this keyword more than once, you can put a single item into
 more than one group.  Displaying any of those groups will show this