Improve documentation of 'save-abbrevs'.

* doc/emacs/abbrevs.texi (Saving Abbrevs): Document the 'silently'
value of 'save-abbrevs'.  Suggested by Alex Branham
<alex.branham@gmail.com> in emacs-manual-bugs@gnu.org.

1 files changed, 2 insertions, 1 deletions

diff --git a/doc/emacs/abbrevs.texi b/doc/emacs/abbrevs.texi
index 5f400a2399a..4e2e92c776b 100644
--- a/doc/emacs/abbrevs.texi
+++ b/doc/emacs/abbrevs.texi
@@ -315,7 +315,8 @@ batch mode.  @xref{Initial Options}, for a description of batch mode.)
 any of them, whenever it offers to save all files (for @kbd{C-x s} or
 @kbd{C-x C-c}).  It saves them in the file specified by
 @code{abbrev-file-name}.  This feature can be inhibited by setting the
-variable @code{save-abbrevs} to @code{nil}.
+variable @code{save-abbrevs} to @code{nil}; setting it to
+@code{silently} will save the abbrevs automatically without asking.
 
 @findex insert-abbrevs
 @findex define-abbrevs