gnu: guile-newt: Update to 0.0.1.

* gnu/packages/guile-xyz.scm (guile-newt): Update to 0.0.1.

gnu/packages/guile-xyz.scm

@@ -948,19 +948,16 @@ Guile.")
        `(("guile" ,guile-2.2)
          ("guile-email" ,guile-email))))))
 
-;; There has not been any release yet.
 (define-public guile-newt
-  (let ((commit "80c1e9e71945f833386d1632b52573e59325804f")
-        (revision "4"))
   (package
     (name "guile-newt")
-      (version (string-append "0-" revision "." (string-take commit 9)))
+    (version "0.0.1")
     (source (origin
               (method git-fetch)
               (uri (git-reference
                     (url "https://gitlab.com/mothacehe/guile-newt")
-                      (commit commit)))
-                (file-name (string-append name "-" version "-checkout"))
+                    (commit version)))
+              (file-name (git-file-name name version))
               (sha256
                (base32
                 "1w7qy4dw1f4bx622l6hw8mv49sf1ha8kch8j4nganyk8fj0wn695"))))
@@ -981,7 +978,7 @@ Guile.")
 color text mode, widget based user interfaces.  The bindings are written in pure
 Scheme by using Guile’s foreign function interface.")
     (home-page "https://gitlab.com/mothacehe/guile-newt")
-      (license license:gpl3+))))
+    (license license:gpl3+)))
 
 (define-public guile-mastodon
   (package