Add missing require

This is used for `hash-table-keys`.

Fix https://github.com/jwiegley/use-package/issues/644.

diff --git a/lisp/use-package/use-package-core.el b/lisp/use-package/use-package-core.el
index 83630b8078598bfe50de74c7b1e507d612f8776e..84cdb83f48dc20577454b5a41ad6a6d29a4cb7f8 100644 (file)
--- a/lisp/use-package/use-package-core.el
+++ b/lisp/use-package/use-package-core.el
@@ -42,6 +42,7 @@
 (require 'bytecomp)
 (require 'cl-lib)
 (require 'tabulated-list)
+(require 'subr-x)
 
 (eval-when-compile
   (require 'cl)