Externalize some symbols in undo-auto

 * doc/lispref/text.texi: Update symbols.
 * lisp/simple.el (undo-auto--amalgamate,
   undo-auto--current-boundary-timer): Make symbols public.
 * src/cmds.c (Fself_insert_command,Fdelete_char): Call
   updated symbol.

1 files changed, 2 insertions, 2 deletions

diff --git a/doc/lispref/text.texi b/doc/lispref/text.texi
index 45373675998..1bb5303620d 100644
--- a/doc/lispref/text.texi
+++ b/doc/lispref/text.texi
@@ -1352,7 +1352,7 @@ Mostly, however, this function is called automatically at an
 appropriate time.
 @end defun
 
-@defun undo-auto--amalgamate
+@defun undo-auto-amalgamate
 The editor command loop automatically calls @code{undo-boundary} just
 before executing each key sequence, so that each undo normally undoes
 the effects of one command.  A few exceptional commands are
@@ -1368,7 +1368,7 @@ buffer other than the @code{current-buffer}, then @code{undo-boundary}
 will be called in each of them.
 @end defun
 
-@defvar undo-auto--boundary-timer
+@defvar undo-auto-current-boundary-timer
 Some buffers, such as process buffers, can change even when no
 commands are executing. In these cases, @code{undo-boundary} is
 normally called periodically by the timer in this variable. Setting