master 89d0284: Make xterm-set-window-title more robust

[Lars Ingebrigtsen]

branch: master
commit 89d02841ab8af0a56b6c7e89790109bf8f67c10e
Author: Lars Ingebrigtsen <larsi@gnus.org>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    Make xterm-set-window-title more robust
    
    * lisp/term/xterm.el (xterm-set-window-title): Don't do anything
    on graphic displays (bug#49932).
---
 lisp/term/xterm.el | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/lisp/term/xterm.el b/lisp/term/xterm.el
index 868b33e..e63bf36 100644
--- a/lisp/term/xterm.el
+++ b/lisp/term/xterm.el
@@ -944,9 +944,10 @@ See `xterm--init-frame-title'"
 (defun xterm-set-window-title (&optional terminal)
   "Set the window title of the Xterm TERMINAL.
 The title is constructed from `frame-title-format'."
-  (send-string-to-terminal
-   (format "\e]2;%s\a" (format-mode-line frame-title-format))
-   terminal))
+  (unless (display-graphic-p terminal)
+    (send-string-to-terminal
+     (format "\e]2;%s\a" (format-mode-line frame-title-format))
+     terminal)))
 
 (defun xterm--selection-char (type)
   (pcase type