           "# ---------------------------------------------------------------------------\n"
           "# This file was auto-generated by Doom by running:\n"
           "#\n"
-          (cl-loop for switch in doom-env-switches
-                   concat (format "#   %s %s %s\n"
-                                  shell-file-name
-                                  switch
-                                  doom-env-executable))
+          (format "#   %s %s %s\n"
+                  shell-file-name
+                  doom-env-switches
+                  doom-env-executable)
           "#\n"
           "# It contains all environment variables scraped from your default shell\n"
           "# (excluding variables blacklisted in doom-env-ignored-vars).\n"


(defvar doom-env-switches
  (if IS-WINDOWS
      '("-c")
    ;; Execute twice, once in a non-interactive login shell and once in an
    ;; interactive shell in order to capture all the init files possible.
    '("-ic"))
  "The `shell-command-switch'es to use on `doom-env-executable'.
This is a list of strings. Each entry is run separately and in sequence with
`doom-env-executable' to scrape envvars from your shell environment.")

          "# To auto-regenerate this file when `doom reload` is run, use `doom env auto'\n"
          "# or set DOOMENV=1 in your shell environment/config.\n"
          "# ---------------------------------------------------------------------------\n\n"))
        ;; temporarily unset ignored environment variables
        (dolist (var doom-env-ignored-vars)
          (setenv var nil))
        (let ((shell-command-switch doom-env-switches))
          (message "Scraping env from '%s %s %s'"
                   shell-file-name
                   shell-command-switch
                   doom-env-executable)
          (insert (shell-command-to-string doom-env-executable)))))))
