gnu: Add emacs-beginend.

* gnu/packages/emacs.scm (emacs-beginend): New public variable.

gnu/packages/emacs.scm

@@ -8916,3 +8916,28 @@ (define-public emacs-company-lua
       (description
        "This package provides Company backend for Lua programming language.")
       (license license:gpl3+))))
+
+(define-public emacs-beginend
+  (package
+    (name "emacs-beginend")
+    (version "2.0.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://github.com/DamienCassou/beginend/archive/"
+                           "v" version ".tar.gz"))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0z4rbwffh9vxfvcrlvym4p73z7gf72q0b5iv33llbpcpbijknnrq"))))
+    ;; TODO: Run tests.
+    (build-system emacs-build-system)
+    (inputs
+     `(("emacs-undercover" ,emacs-undercover))) ; For tests.
+    (home-page "https://github.com/DamienCassou/beginend")
+    (synopsis "Redefine @code{M-<} and @code{M->} for Emacs modes")
+    (description "@code{beginend} redefines @code{M-<} and @code{M->}
+keybindings for Emacs modes so that point moves to meaningful
+locations.  Redefined keys are still accessible by pressing the same
+key again.")
+    (license license:gpl3+)))