Arrange for loaddefs files to be greppable

Without this change, ldefs-boot.el contains a couple of stray NUL
bytes, which cause it to be considered to be a non-text file by
tools like GNU grep.
* lisp/emacs-lisp/autoload.el (autoload-print-form):
Set print-escape-control-characters to t.

1 files changed, 2 insertions, 0 deletions

diff --git a/lisp/emacs-lisp/autoload.el b/lisp/emacs-lisp/autoload.el
index 92ad6155b53..7b4a7d04f92 100644
--- a/lisp/emacs-lisp/autoload.el
+++ b/lisp/emacs-lisp/autoload.el
@@ -324,6 +324,7 @@ put the output in."
             (setcdr p nil)
             (princ "\n(" outbuf)
             (let ((print-escape-newlines t)
+                  (print-escape-control-characters t)
                   (print-quoted t)
                   (print-escape-nonascii t))
               (dolist (elt form)
@@ -348,6 +349,7 @@ put the output in."
                        outbuf))
               (terpri outbuf)))
         (let ((print-escape-newlines t)
+              (print-escape-control-characters t)
               (print-quoted t)
               (print-escape-nonascii t))
           (print form outbuf)))))))