; Fix bug#53367

* lisp/net/tramp.el (tramp-debug-buffer-command-completion-p):
Handle small buffers.  (Bug#53367)

diff --git a/lisp/net/tramp.el b/lisp/net/tramp.el
index 4c6a0bd96457565ab43428e03c3464853b07a7bb..b258121549d5415c6dc0a6a2480fa217ef1206dc 100644 (file)
--- a/lisp/net/tramp.el
+++ b/lisp/net/tramp.el
@@ -1930,7 +1930,7 @@ The outline level is equal to the verbosity of the Tramp message."
   "A predicate for Tramp interactive commands.
 They are completed by \"M-x TAB\" only in Tramp debug buffers."
   (with-current-buffer buffer
-    (string-equal (buffer-substring 1 10) ";; Emacs:")))
+    (string-equal (buffer-substring 1 (min 10 (point-max))) ";; Emacs:")))
 
 (put #'tramp-debug-buffer-command-completion-p 'tramp-suppress-trace t)