gnu: agda-ial: Fix install step.

* gnu/packages/agda.scm (agda-ial): copy library and agdai files when installing.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/agda.scm

@@ -190,7 +190,7 @@ (define-public agda-ial
                (for-each (lambda (file)
                            (make-file-writable file)
                            (install-file file include))
-                         (find-files "." "\\.agda$"))
+                         (find-files "." "\\.agdai?(-lib)?$"))
                #t))))))
     (synopsis "The Iowa Agda Library")
     (description