gnu: emacs-disable-mouse: Don't use unstable tarball.

* gnu/packages/emacs-xyz.scm (emacs-disable-mouse)[source]: Use GIT-FETCH and
GIT-FILE-NAME.

gnu/packages/emacs-xyz.scm

@@ -7351,14 +7351,13 @@ running tests easier.")
     (version "0.2")
     (source
      (origin
-       (method url-fetch)
-       (uri (string-append
-             "https://github.com/purcell/disable-mouse/archive/"
-             version ".tar.gz"))
-       (file-name (string-append name "-" version ".tar.gz"))
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/purcell/disable-mouse.git")
+             (commit version)))
+       (file-name (git-file-name name version))
        (sha256
-        (base32
-         "0haqpq23r1wx04lsqrrg3p5visg9hx5i36dg55ab003wfsrlrzbc"))))
+        (base32 "1v1y5hf6k6ng7xsvgb27nh740d14m6l4krr0paccda8zgm4mw357"))))
     (build-system emacs-build-system)
     (home-page "https://github.com/purcell/disable-mouse")
     (synopsis "Disable mouse commands globally")