gnu: gl.scm: Don't import 'zip' from srfi-1.

* gnu/packages/gl.scm: Hide 'zip' when importing srfi-1.

gnu/packages/gl.scm

@@ -56,7 +56,7 @@
   #:use-module (guix packages)
   #:use-module (guix utils)
   #:use-module (ice-9 match)
-  #:use-module (srfi srfi-1))
+  #:use-module ((srfi srfi-1) #:hide (zip)))
 
 (define-public glu
   (package