gnu: aalib: Use invoke.

* gnu/packages/video.scm (aalib)[arguments]: Use invoke in the custom
configure phase.

gnu/packages/video.scm

@@ -153,7 +153,7 @@
                     (let ((out     (assoc-ref outputs "out"))
                           (ncurses (assoc-ref inputs "ncurses")))
                       (setenv "CONFIG_SHELL" (which "bash"))
-                      (zero? (system* "./configure"
+                      (invoke "./configure"
                               (string-append "--prefix=" out)
                               (string-append "--build=" build)
                               ;; The ancient config.guess is unable to
@@ -168,7 +168,7 @@
                                     '("--host=aarch64-unknown-linux-gnu")
                                     '())
                               (string-append "--with-ncurses="
-                                                     ncurses)))))))))
+                                             ncurses))))))))
     (home-page "http://aa-project.sourceforge.net/aalib/")
     (synopsis "ASCII-art library")
     (description