Eshell: Require subr-x for string-trim in eshell-append-region-to-command-line

.emacs.d/lisp/init-eshell.el

@@ -322,6 +322,7 @@ See `eshell' for the numeric prefix ARG."
 ;; Misc.
 (defun ambrevar/eshell-append-region-to-command-line (begin end)
   (interactive "r")
+  (require 'subr-x)                     ; For `string-trim'.
   (save-mark-and-excursion
     (let ((string (buffer-substring-no-properties begin end)))
       (setq string (string-trim string))