Adjudicate review comments in abbrevs.texi

* doc/lispref/abbrevs.texi (Abbrev Files, Abbrev Expansion):
* doc/emacs/abbrevs.texi (Dabbrev Customization): State the
default values of variables.  Suggested by Steve Byrne
<sbb@penguinis.org>.  (Bug#23016)

* admin/release-process (Check manuals): Mark files reviewed by
Steve Byrne.

3 files changed, 13 insertions, 9 deletions

diff --git a/admin/release-process b/admin/release-process
index 2f23dac9b7f..3f75ff52ca4 100644
--- a/admin/release-process
+++ b/admin/release-process
@@ -237,7 +237,7 @@ TUTORIAL.zh
 
 ** Check the manual.
 
-abbrevs.texi
+abbrevs.texi            Steve Byrne
 ack.texi
 anti.texi
 arevert-xtra.texi
@@ -292,7 +292,7 @@ xresources.texi
 
 ** Check the Lisp manual.
 
-abbrevs.texi
+abbrevs.texi            Steve Byrne
 anti.texi
 back.texi
 backups.texi
diff --git a/doc/emacs/abbrevs.texi b/doc/emacs/abbrevs.texi
index e0441a1984d..a1db34cf0ee 100644
--- a/doc/emacs/abbrevs.texi
+++ b/doc/emacs/abbrevs.texi
@@ -435,9 +435,9 @@ copies the expansion verbatim including its case pattern.
 controls which characters are considered part of a word, for dynamic expansion
 purposes.  The regular expression must match just one character, never
 two or more.  The same regular expression also determines which
-characters are part of an expansion.  The value @code{nil} has a special
-meaning: dynamic abbrevs are made of word characters, but expansions are
-made of word and symbol characters.
+characters are part of an expansion.  The (default) value @code{nil}
+has a special meaning: dynamic abbrevs are made of word characters,
+but expansions are made of word and symbol characters.
 
 @vindex dabbrev-abbrev-skip-leading-regexp
   In shell scripts and makefiles, a variable name is sometimes prefixed
@@ -445,4 +445,5 @@ with @samp{$} and sometimes not.  Major modes for this kind of text can
 customize dynamic abbrev expansion to handle optional prefixes by setting
 the variable @code{dabbrev-abbrev-skip-leading-regexp}.  Its value
 should be a regular expression that matches the optional prefix that
-dynamic abbrev expression should ignore.
+dynamic abbrev expression should ignore.  The default is @code{nil},
+which means no characters should be skipped.
diff --git a/doc/lispref/abbrevs.texi b/doc/lispref/abbrevs.texi
index 5f5a395c97a..cdea2a8b3c8 100644
--- a/doc/lispref/abbrevs.texi
+++ b/doc/lispref/abbrevs.texi
@@ -198,7 +198,10 @@ abbrevs in a file automatically, under the control of variables
 described here.
 
 @defopt abbrev-file-name
-This is the default file name for reading and saving abbrevs.
+This is the default file name for reading and saving abbrevs.  By
+default, Emacs will look for @file{~/.emacs.d/abbrev_defs}, and, if
+not found, for @file{~/.abbrev_defs}; if neither file exists, Emacs
+will create @file{~/.emacs.d/abbrev_defs}.
 @end defopt
 
 @defun quietly-read-abbrev-file &optional filename
@@ -216,7 +219,7 @@ A non-@code{nil} value for @code{save-abbrevs} means that Emacs should
 offer to save abbrevs (if any have changed) when files are saved.  If
 the value is @code{silently}, Emacs saves the abbrevs without asking
 the user.  @code{abbrev-file-name} specifies the file to save the
-abbrevs in.
+abbrevs in.  The default value is @code{t}.
 @end defopt
 
 @defvar abbrevs-changed
@@ -282,7 +285,7 @@ omitted, it defaults to point.  @code{name}, if non-@code{nil}, should
 be the name by which this abbrev was found (a string); it is used to
 figure out whether to adjust the capitalization of the expansion.  The
 function returns @code{abbrev} if the abbrev was successfully
-inserted.
+inserted, otherwise it returns @code{nil}.
 @end defun
 
 @deffn Command abbrev-prefix-mark &optional arg