Fix compilation warning in qp.el

* lisp/mail/qp.el (quoted-printable-encode-region): No need to
convert the regexp to multibyte before searching.

diff --git a/lisp/mail/qp.el b/lisp/mail/qp.el
index 5b49741188622fc70cdedf25d2862beff2dc7c81..803d78602e55b5cdf4401627914e84f5b0e38ad2 100644 (file)
--- a/lisp/mail/qp.el
+++ b/lisp/mail/qp.el
@@ -115,8 +115,7 @@ encode lines starting with \"From\"."
     (setq class "\010-\012\014\040-\074\076-\177"))
   (save-excursion
     (goto-char from)
-    (if (re-search-forward (string-to-multibyte "[^\x0-\x7f\x80-\xff]")
-                          to t)
+    (if (re-search-forward "[^\x0-\x7f\x80-\xff]" to t)
        (error "Multibyte character in QP encoding region"))
     (save-restriction
       (narrow-to-region from to)