master f3e6dd1: Fix a compilation warning in xdisp.c

[Eli Zaretskii]

branch: master
commit f3e6dd1ce97bb279565465dc1ecce1516f42683e
Author: Eli Zaretskii <eliz@gnu.org>
Commit: Eli Zaretskii <eliz@gnu.org>

    Fix a compilation warning in xdisp.c
    
    * src/xdisp.c (gui_consider_frame_title): Fix compilation warning.
    Reported by Lars Ingebrigtsen <larsi@gnus.org>.
---
 src/xdisp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/xdisp.c b/src/xdisp.c
index 9d2bec3..a6706b0 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -12568,8 +12568,8 @@ gui_consider_frame_title (Lisp_Object frame)
       /* Make sure that any raw bytes in the title are properly
          represented by their multibyte sequences.  */
       ptrdiff_t nchars = 0;
-      len = str_as_multibyte (title, mode_line_noprop_buf_end - title,
-                              len, &nchars);
+      len = str_as_multibyte ((unsigned char *)title,
+                             mode_line_noprop_buf_end - title, len, &nchars);
       unbind_to (count, Qnil);
 
       /* Set the title only if it's changed.  This avoids consing in