Avoid byte-compilation warning in emacsbug.el

* lisp/mail/emacsbug.el (w32--os-description): Declare it, to
avoid byte-compilation warning.  Reported by Live System User
<nyc4bos@aol.com>.

diff --git a/lisp/mail/emacsbug.el b/lisp/mail/emacsbug.el
index e55f950aac358881d8a3d5675df641948c181ec6..795516737d309e61d2dc0a35b9bb3a86adc293a1 100644 (file)
--- a/lisp/mail/emacsbug.el
+++ b/lisp/mail/emacsbug.el
@@ -69,6 +69,7 @@
 (declare-function x-server-vendor "xfns.c" (&optional terminal))
 (declare-function x-server-version "xfns.c" (&optional terminal))
 (declare-function message-sort-headers "message" ())
+(declare-function w32--os-description "w32-fns" ())
 (defvar message-strip-special-text-properties)
 
 (defun report-emacs-bug-can-use-osx-open ()