gnu: emacs-dash: Update to 2.14.1.

* gnu/packages/emacs.scm (emacs-dash): Update to 2.14.1.
[source]: Fetch from git.

gnu/packages/emacs.scm

@@ -1579,16 +1579,16 @@ and stored in memory.")
 (define-public emacs-dash
   (package
     (name "emacs-dash")
-    (version "2.13.0")
+    (version "2.14.1")
     (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "https://github.com/magnars/dash.el/archive/"
-                    version ".tar.gz"))
-              (file-name (string-append name "-" version ".tar.gz"))
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/magnars/dash.el.git")
+                    (commit version)))
+              (file-name (git-file-name name version))
               (sha256
                (base32
-                "1pjlkrzr8n45bnp3xs3dybvy0nz3gwamrfc7vsi1nhpkkw99ihhb"))))
+                "1kzijmjxjxgr7p8clphzvmm47vczckbs8mza9an77c25bn627ywl"))))
     (build-system emacs-build-system)
     (arguments
      `(#:tests? #t