2 files changed, 38 insertions, 33 deletions

diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index 702db101549..210897f6de3 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,3 +1,8 @@
+2012-12-06  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+        * customize.texi (Variable Definitions): Mention the default :group
+        for defcustoms (bug#13093).
+
 2012-12-05  Chong Yidong  <cyd@gnu.org>
 
         * lists.texi (Plist Access): Move put example to Symbol Plists.
@@ -17,7 +22,7 @@
         * display.texi (Defining Faces):
         * sequences.texi (Char-Tables): Fix xref.
 
-        * keymaps.texi (Key Sequences): kbd is now a function.
+        * keymaps.texi (Key Sequences): `kbd' is now a function.
 
         * commands.texi (Using Interactive): Fix index entry.
 
@@ -27,16 +32,14 @@
         (Windows and Frames): Fix example.  Move description of
         window-in-direction here.
         (Recombining Windows): Fix example.
-        (Buffers and Windows): Fix description of
-        replace-buffer-in-windows.
+        (Buffers and Windows): Fix description of replace-buffer-in-windows.
         (Switching Buffers): Reword.
         (Display Action Functions): Minor adjustments.
         (Choosing Window Options): Minor fixes.
         (Window History): Minor rewording.
         (Dedicated Windows): Correct and reword part describing how
         dedicatedness affects functions removing buffers or windows.
-        * buffers.texi (The Buffer List): Fix description of
-        bury-buffer.
+        * buffers.texi (The Buffer List): Fix description of bury-buffer.
 
 2012-11-23  Chong Yidong  <cyd@gnu.org>
 
@@ -97,8 +100,8 @@
 
         * windows.texi (Choosing Window): Rewrite description of
         display-buffer-alist (Bug#12167).
-        (Display Action Functions): Mention inhibit-switch-frame.  Fix
-        description of display-buffer-below-selected.  Reorder actions.
+        (Display Action Functions): Mention inhibit-switch-frame.
+        Fix description of display-buffer-below-selected.  Reorder actions.
         Add example (Bug#12848).
 
 2012-11-15  Stefan Monnier  <monnier@iro.umontreal.ca>
@@ -188,11 +191,11 @@
         switch-to-buffer-preserve-window-point.
         (Display Action Functions): Document window-height and
         window-width alist entries.
-        (Display Action Functions): Document
-        display-buffer-below-selected and
+        (Display Action Functions):
+        Document display-buffer-below-selected and
         display-buffer-in-previous-window.
-        (Quitting Windows): Document quit-restore-window.  Rewrite
-        section.
+        (Quitting Windows): Document quit-restore-window.
+        Rewrite section.
         (Window Configurations): In window-state-get mention that
         argument window must be valid.
         (Window Parameters): Document quit-restore window parameter
@@ -292,8 +295,8 @@
         * minibuf.texi (Text from Minibuffer): Document read-regexp
         changes.
 
-        * nonascii.texi (Selecting a Representation): Document
-        set-buffer-multibyte changes.
+        * nonascii.texi (Selecting a Representation):
+        Document set-buffer-multibyte changes.
 
         * keymaps.texi (Toolkit Differences): Node deleted.
         (Easy Menu): New node.
@@ -1065,8 +1068,8 @@
 
 2012-04-12  Jari Aalto  <jari.aalto@cante.net>
 
-        * processes.texi (Synchronous Processes): Mention
-        `default-directory' (bug#7515).
+        * processes.texi (Synchronous Processes):
+        Mention `default-directory' (bug#7515).
 
 2012-04-09  Chong Yidong  <cyd@gnu.org>
 
@@ -1089,8 +1092,8 @@
 
         * minibuf.texi (Programmed Completion): Remove obsolete variable
         completion-annotate-function.
-        (Completion Variables): Rename from Completion Styles.  Document
-        completion-extra-properties.  Document completion-styles-alist
+        (Completion Variables): Rename from Completion Styles.
+        Document completion-extra-properties.  Document completion-styles-alist
         change.
         (Reading File Names): minibuffer-local-filename-must-match-map is
         not used anymore.
@@ -1225,8 +1228,8 @@
         Minor clarifications.
         (Defining Faces): Copyedits.  Update face example.
         (Attribute Functions): Mark set-face-foreground etc as commands.
-        (Face Remapping): Mention text-scale-adjust.  Clarify
-        face-remapping-alist and related docs.
+        (Face Remapping): Mention text-scale-adjust.
+        Clarify face-remapping-alist and related docs.
         (Face Functions): Don't document make-face or copy-face.
 
 2012-03-20  Chong Yidong  <cyd@gnu.org>
@@ -1567,8 +1570,8 @@
         (Syntax Properties): Document syntax-propertize-function and
         syntax-propertize-extend-region-functions.
         (Motion via Parsing): Clarify scan-lists. Fix indentation.
-        (Parser State): Update for the new "c" comment style.  Fix
-        description of item 7 (comment style).
+        (Parser State): Update for the new "c" comment style.
+        Fix description of item 7 (comment style).
 
         * modes.texi (Minor Modes): Update how mode commands should treat
         arguments now.
@@ -1646,9 +1649,9 @@
 
         * debugging.texi (Debugging): Copyedits.  Describe testcover, ERT.
         (Error Debugging): Note that debug-ignored-errors overrides list
-        values of debug-on-error too.  Add xref to Signaling Errors.  Note
-        that debug-on-signal is not customizable.  Mention
-        condition-case-unless-debug.
+        values of debug-on-error too.  Add xref to Signaling Errors.
+        Note that debug-on-signal is not customizable.
+        Mention condition-case-unless-debug.
         (Compilation Errors): Node deleted.
 
         * compile.texi (Compiler Errors): Move a paragraph here from
@@ -1764,15 +1767,15 @@
 2012-02-04  Chong Yidong  <cyd@gnu.org>
 
         * functions.texi (What Is a Function): Add closures.  Mention
-        "return value" terminology.  Add xref for command-execute.  Remove
-        unused "keystroke command" terminology.
+        "return value" terminology.  Add xref for command-execute.
+        Remove unused "keystroke command" terminology.
         (Lambda Expressions): Give a different example than in the
         following subsection.  Add xref to Anonymous Functions.
         (Function Documentation): Remove gratuitous markup.
         (Function Names): Move introductory text to `What Is a Function'.
         (Defining Functions): Fix defun argument spec.
-        (Anonymous Functions): Document lambda macro explicitly.  Mention
-        effects on lexical binding.
+        (Anonymous Functions): Document lambda macro explicitly.
+        Mention effects on lexical binding.
         (Function Cells): Downplay direct usage of fset.
         (Closures): New node.
         (Inline Functions): Remove "open-code" terminology.
@@ -1903,8 +1906,8 @@
         * variables.texi (Variables, Local Variables, Void Variables):
         Edit to make the descriptions less specific to dynamic binding.
         (Local Variables): Default max-specpdl-size is now 1300.
-        (Defining Variables): Edits for lexical scoping.  Delete
-        information about starting docstrings with *.  De-document
+        (Defining Variables): Edits for lexical scoping.
+        Delete information about starting docstrings with *.  De-document
         user-variable-p.
         (Tips for Defining): Remove an unimportant discussion of quitting
         in the middle of a load.
@@ -1992,8 +1995,8 @@
 
 2012-01-06  Chong Yidong  <cyd@gnu.org>
 
-        * variables.texi (Directory Local Variables): Document
-        hack-dir-local-variables-non-file-buffer.
+        * variables.texi (Directory Local Variables):
+        Document hack-dir-local-variables-non-file-buffer.
 
 2012-01-06  Glenn Morris  <rgm@gnu.org>
 
diff --git a/doc/lispref/customize.texi b/doc/lispref/customize.texi
index 1fb8bb3e71a..14076fe9408 100644
--- a/doc/lispref/customize.texi
+++ b/doc/lispref/customize.texi
@@ -303,7 +303,9 @@ evaluate at any time.
 The argument @var{doc} specifies the documentation string for the
 variable.
 
-Every @code{defcustom} should specify @code{:group} at least once.
+If a @code{defcustom} does not specify any @code{:group}, the last group
+defined with @code{defgroup} in the same file will be used.  This way, most
+@code{defcustom} do not need an explicit @code{:group}.
 
 When you evaluate a @code{defcustom} form with @kbd{C-M-x} in Emacs Lisp
 mode (@code{eval-defun}), a special feature of @code{eval-defun}