gnu: emacs-tuareg: Update to 3.0.0.

* gnu/packages/ocaml.scm (emacs-tuareg): Update to 3.0.0.

gnu/packages/ocaml.scm

@@ -1079,22 +1079,18 @@ the OCaml core distribution.")
     (license license:lgpl2.1+))); with linking exception
 
 (define-public emacs-tuareg
-  ;; Last upstream release on Sept., 14th, 2018, since then "Package cl
-  ;; deprecated" or 'lexical-binding' and others had been fixed.
-  (let ((commit "ccde45bbc292123ec20617f1af7f7e19f7481545")
-        (revision "0"))
   (package
     (name "emacs-tuareg")
-      (version (git-version "2.2.0" revision commit))
+    (version "3.0.0")
     (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/ocaml/tuareg")
-               (commit commit)))
+             (commit version)))
        (file-name (git-file-name name version))
        (sha256
-          (base32 "1yxv4bnqarilnpg5j7wywall8170hwvm0q4xx06yqjgcn8pq1lac"))))
+        (base32 "115vm0hq4xkwfd3w0j8xqhkdgcirlxpnwzwxv02c27583hj056is"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("emacs" ,emacs-minimal)
@@ -1126,7 +1122,7 @@ the OCaml core distribution.")
     (description "Tuareg helps editing OCaml code, to highlight important
 parts of the code, to run an OCaml REPL, and to run the OCaml debugger within
 Emacs.")
-      (license license:gpl2+))))
+    (license license:gpl2+)))
 
 (define-public ocaml-menhir
   (package