guix-package: Fix invalid module use.

* guix-package.in: Use (distro packages guile), not (... base).

guix-package.in

@@ -45,7 +45,7 @@ exec ${GUILE-@GUILE@} -L "@guilemoduledir@" -l "$0"    \
   #:use-module (srfi srfi-34)
   #:use-module (srfi srfi-37)
   #:autoload   (distro) (find-packages-by-name)
-  #:use-module (distro packages base)
+  #:use-module (distro packages guile)
   #:export (guix-package))
 
 (define %store