Improve error message text of "C-x C-SPC"

* lisp/simple.el (pop-global-mark): Mention the buffer name in the
error message.  Suggested by T.V Raman <raman@google.com>.

1 files changed, 2 insertions, 1 deletions

diff --git a/lisp/simple.el b/lisp/simple.el
index d73bc6b0682..3c4f7562308 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -6426,7 +6426,8 @@ for it.")
              (<= position (point-max)))
         (if widen-automatically
             (widen)
-          (error "Global mark position is outside accessible part of buffer")))
+          (error "Global mark position is outside accessible part of buffer %s"
+                 (buffer-name buffer))))
     (goto-char position)
     (switch-to-buffer buffer)))