Don't use seq-first, not supported on Emacs 26

Author: r0man

cider-browse-spec.el

@@ -150,7 +150,7 @@ Display TITLE at the top and SPECS are indented underneath."
     (format "(s/schema\n {%s})"
             (string-join
              (thread-last
-               (seq-sort-by #'seq-first #'string< name-spec-pairs)
+               (seq-sort-by #'car #'string< name-spec-pairs)
                (mapcar (lambda (s) (concat (cl-first s) " " (cider-browse-spec--pprint (cl-second s))))))
              "\n  "))))
 

test/cider-browse-spec-tests.el

@@ -2,7 +2,7 @@
 
 ;; Copyright © 2012-2022 r0man, Bozhidar Batsov
 
-;; Author: r0man <r0man@burningswell.com>
+;; Author: r0man <roman@burningswell.com>
 ;;         Bozhidar Batsov <[email protected]>
 
 ;; This file is NOT part of GNU Emacs.